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Wednesday, March 02, 2011

Creating Bootable USB drive!

How To Boot From A USB Flash Drive
For starters this is still a new science and many people have had good luck with at least one of these methods and others have not. Note that flash drives are often also called thumb drives, keychain drives, pendrives, etc. The NEWEST methods are listed last on this page, starting with Method 6 for Vista/Win7
A FEW THINGS YOU NEED TO CONSIDER IN ADVANCE.
1. The PC has to support booting from a USB flash/pen/key drive. There may be anywhere from 1-3 items to change in the BIOS to make this possible assuming your BIOS supports it. Some bios's may refer to your flash drive as a USB floppy or USB zip. Of course there are exceptions, perhaps some are covered here.
2. The USB flash drive must support booting from it in general.
3. The flash drive must contain the boot/system files.
4. The flash drive must have bootsector area. This is done with special utilities.
5. References to "A:" drive lines in the autoexec.bat and/or config.sys files you copy to the drive after you make it bootable may result in errors.
6. You "may" have to format your floppy disk first in WinXP before you create a bootdisk as XP may "not" like working later on with a disk formatted otherwise.
7. Included below is a bootable ISO of DOS 7.1 which may be used with some of these methods if you do not have a 1.44 drive.

Keyboard Shortcuts

Here are some of the keyboard shortcuts that are used often:


CTRL+C (Copy)
CTRL+X (Cut)
CTRL+V (Paste)
CTRL+Z (Undo)
DELETE (Delete)
SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin)
CTRL while dragging an item (Copy the selected item)
CTRL+SHIFT while dragging an item (Create a shortcut to the selected item)
F2 key (Rename the selected item)
CTRL+RIGHT ARROW (Move the insertion point to the beginning of the next word)
CTRL+LEFT ARROW (Move the insertion point to the beginning of the previous word)
CTRL+DOWN ARROW (Move the insertion point to the beginning of the next paragraph)
CTRL+UP ARROW (Move the insertion point to the beginning of the previous paragraph)
CTRL+SHIFT with any of the arrow keys (Highlight a block of text)
SHIFT with any of the arrow keys (Select more than one item in a window or on the desktop, or select text in a document)
CTRL+A (Select all)
F3 key (Search for a file or a folder)
ALT+ENTER (View the properties for the selected item)
ALT+F4 (Close the active item, or quit the active program)
ALT+ENTER (Display the properties of the selected object)
ALT+SPACEBAR (Open the shortcut menu for the active window)
CTRL+F4 (Close the active document in programs that enable you to have multiple documents open simultaneously)
ALT+TAB (Switch between the open items)
ALT+ESC (Cycle through items in the order that they had been opened)
F6 key (Cycle through the screen elements in a window or on the desktop)
F4 key (Display the Address bar list in My Computer or Windows Explorer)
SHIFT+F10 (Display the shortcut menu for the selected item)
ALT+SPACEBAR (Display the System menu for the active window)
CTRL+ESC (Display the Start menu)
ALT+Underlined letter in a menu name (Display the corresponding menu)
Underlined letter in a command name on an open menu (Perform the corresponding command)
F10 key (Activate the menu bar in the active program)
RIGHT ARROW (Open the next menu to the right, or open a submenu)
LEFT ARROW (Open the next menu to the left, or close a submenu)
F5 key (Update the active window)
BACKSPACE (View the folder one level up in My Computer or Windows Explorer)
ESC (Cancel the current task)
SHIFT when you insert a CD-ROM into the CD-ROM drive (Prevent the CD-ROM from automatically playing)
CTRL+SHIFT+ESC (Open Task Manager)

Dialog box keyboard shortcuts

If you press SHIFT+F8 in extended selection list boxes, you enable extended selection mode. In this mode, you can use an arrow key to move a cursor without changing the selection. You can press CTRL+SPACEBAR or SHIFT+SPACEBAR to adjust the selection. To cancel extended selection mode, press SHIFT+F8 again. Extended selection mode cancels itself when you move the focus to another control.
CTRL+TAB (Move forward through the tabs)
CTRL+SHIFT+TAB (Move backward through the tabs)
TAB (Move forward through the options)
SHIFT+TAB (Move backward through the options)
ALT+Underlined letter (Perform the corresponding command or select the corresponding option)
ENTER (Perform the command for the active option or button)
SPACEBAR (Select or clear the check box if the active option is a check box)
Arrow keys (Select a button if the active option is a group of option buttons)
F1 key (Display Help)
F4 key (Display the items in the active list)
BACKSPACE (Open a folder one level up if a folder is selected in the Save As or Open dialog box)

Microsoft natural keyboard shortcuts


Windows Logo (Display or hide the Start menu)
Windows Logo+BREAK (Display the System Properties dialog box)
Windows Logo+D (Display the desktop)
Windows Logo+M (Minimize all of the windows)
Windows Logo+SHIFT+M (Restore the minimized windows)
Windows Logo+E (Open My Computer)
Windows Logo+F (Search for a file or a folder)
CTRL+Windows Logo+F (Search for computers)
Windows Logo+F1 (Display Windows Help)
Windows Logo+ L (Lock the keyboard)
Windows Logo+R (Open the Run dialog box)
Windows Logo+U (Open Utility Manager)

Accessibility keyboard shortcuts

Right SHIFT for eight seconds (Switch FilterKeys either on or off)
Left ALT+left SHIFT+PRINT SCREEN (Switch High Contrast either on or off)
Left ALT+left SHIFT+NUM LOCK (Switch the MouseKeys either on or off)
SHIFT five times (Switch the StickyKeys either on or off)
NUM LOCK for five seconds (Switch the ToggleKeys either on or off)
Windows Logo +U (Open Utility Manager)

Windows Explorer keyboard shortcuts 


END (Display the bottom of the active window)
HOME (Display the top of the active window)
NUM LOCK+Asterisk sign (*) (Display all of the subfolders that are under the selected folder)
NUM LOCK+Plus sign (+) (Display the contents of the selected folder)
NUM LOCK+Minus sign (-) (Collapse the selected folder)
LEFT ARROW (Collapse the current selection if it is expanded, or select the parent folder)
RIGHT ARROW (Display the current selection if it is collapsed, or select the first subfolder)
HYPERLINK "http://support.microsoft.com/kb/301583" \l "top#top" INCLUDEPICTURE "http://support.microsoft.com/library/images/support/kbgraphics/public/en-us/uparrow.gif" \* MERGEFORMATINET Back to the top
Shortcut keys for Character MapAfter you double-click a character on the grid of characters, you can move through the grid by using the keyboard shortcuts:
RIGHT ARROW (Move to the right or to the beginning of the next line)
LEFT ARROW (Move to the left or to the end of the previous line)
UP ARROW (Move up one row)
DOWN ARROW (Move down one row)
PAGE UP (Move up one screen at a time)
PAGE DOWN (Move down one screen at a time)
HOME (Move to the beginning of the line)
END (Move to the end of the line)
CTRL+HOME (Move to the first character)
CTRL+END (Move to the last character)
SPACEBAR (Switch between Enlarged and Normal mode when a character is selected)
Microsoft Management Console (MMC) main window keyboard shortcuts
CTRL+O (Open a saved console)
CTRL+N (Open a new console)
CTRL+S (Save the open console)
CTRL+M (Add or remove a console item)
CTRL+W (Open a new window)
F5 key (Update the content of all console windows)
ALT+SPACEBAR (Display the MMC window menu)
ALT+F4 (Close the console)
ALT+A (Display the Action menu)
ALT+V (Display the View menu)
ALT+F (Display the File menu)
ALT+O (Display the Favorites menu)
MMC console window keyboard shortcutsCTRL+P (Print the current page or active pane)
ALT+Minus sign (-) (Display the window menu for the active console window)
SHIFT+F10 (Display the Action shortcut menu for the selected item)
F1 key (Open the Help topic, if any, for the selected item)
F5 key (Update the content of all console windows)
CTRL+F10 (Maximize the active console window)
CTRL+F5 (Restore the active console window)
ALT+ENTER (Display the Properties dialog box, if any, for the selected item)
F2 key (Rename the selected item)
CTRL+F4 (Close the active console window. When a console has only one console window, this shortcut closes the console)
CTRL+ALT+END (Open the Microsoft Windows NT Security dialog box)
ALT+PAGE UP (Switch between programs from left to right)
ALT+PAGE DOWN (Switch between programs from right to left)
ALT+INSERT (Cycle through the programs in most recently used order)
ALT+HOME (Display the Start menu)
CTRL+ALT+BREAK (Switch the client computer between a window and a full screen)
ALT+DELETE (Display the Windows menu)
CTRL+ALT+Minus sign (-) (Place a snapshot of the entire client window area on the Terminal server clipboard and provide the same functionality as pressing ALT+PRINT SCREEN on a local computer.)
CTRL+ALT+Plus sign (+) (Place a snapshot of the active window in the client on the Terminal server clipboard and provide the same functionality as pressing PRINT SCREEN on a local computer.)
CTRL+B (Open the Organize Favorites dialog box)
CTRL+E (Open the Search bar)
CTRL+F (Start the Find utility)
CTRL+H (Open the History bar)
CTRL+I (Open the Favorites bar)
CTRL+L (Open the Open dialog box)
CTRL+N (Start another instance of the browser with the same Web address)
CTRL+O (Open the Open dialog box, the same as CTRL+L)
CTRL+P (Open the Print dialog box)
CTRL+R (Update the current Web page)
CTRL+W (Close the current window)

Other information

Some keyboard shortcuts may not work if StickyKeys is turned on in Accessibility Options.
Some of the Terminal Services client shortcuts that are similar to the shortcuts in Remote Desktop Sharing are not available when you use Remote Assistance in Windows XP Home Edition.

Speed up Firefox!

Tips to speed up Firefox!

1.Type "about:config" into the address bar and hit enter.
Scroll down and look for the following entries:

    * network.http.pipelining
    * network.http.proxy.pipelining
    * network.http.pipelining.maxrequests


Normally the browser will make one request to a web page at a time. When you enable pipelining it will make several at once, which really speeds up page loading.

2. Alter the entries as follows:

    * Set "network.http.pipelining" to "true"
    * Set "network.http.proxy.pipelining" to "true"
    * Set "network.http.pipelining.maxrequests" to some number like 30.

This means it will make 30 requests at once.

3. right-click anywhere and select New-> Integer. "nglayout.initialpaint.delay" and set its value to "0". This value is the amount of time the browser waits before it acts.


Steps to speed up your Firefox Browser:

Step 1:

type about:config in the Firefox address bar and hit enter.
Click “i’ll be careful,i promise!”, when prompted.

Step 2:

In the Filter search bar type network.http.pipelining
Here, if the value is set to false, then double-click it  to set the value to true.

Step 3:

Again, go to the Filter search bar and type network.http.pipelining.maxrequests. Double-click on this option and set its value to 8.
Step 4:

Similarly, open network.http.proxy.pipelining and set its value to true by double-clicking on it.
Step 5:

Type network.dns.disableIPv6 in the filter search bar and set this option to true by double clicking on it.
Step 6:

CONTENT INTERRUPT PARSING

This preference is used to control the response to UI events if the application will interrupt parsing a page.

Right-click (for Apple users ctrl+click) anywhere in the about:config window, select New–>Boolean from the pop-up menu.
Then enter content.interrupt.parsing in the New boolean value pop-up window and click OK.
Select true and click OK when prompted to choose the value for the new boolean .

Step 7:

Mozilla applications regularly render what has been received at any instance, instead of waiting for a page to completely download to display it to the user. This option controls the maximum amount of time the application will be unresponsive while rendering pages.

Right-click (for Apple users ctrl+click) anywhere in the about:config window, select New–>Integer from the pop-up menu.
Here, enter content.max.tokenizing.time in the New integer value pop-up window and click OK
Set the value of content.max.tokenizing time to 2250000 when prompted and click OK.

Step 8:

CONTENT NOTIFY INTERVAL

This option sets the minimum amount of time to wait between reflows.

Right-click (for Apple users ctrl+click) anywhere in the about:config window and select New–>Integer from the pop-up menu.
Type content.notify.interval in the New integer value pop-up window and click OK.
Enter 750000 and click OK when prompted to enter a value.
Step 9:

CONTENT NOTIFY ONTIMER

This option sets the if to reflow pages at an interval any higher than what is specified by the content.notify.interval.

Type content.notify.ontimer in the New boolean value pop-up window and click OK.
Right-click (for Apple users ctrl+click) anywhere in the about:config window and select New–>Boolean from the pop-up menu.
Select true and click OK when prompted to choose the new boolean value.
Step 10:

Notify Backoffcount

This option controls the maximum number of times the content will do timer-based reflows. The page reflows only once when it has finished downloading after reaching this number.

Right-click (for Apple users ctrl+click) anywhere in the about:config window and select New–>Integer from the pop-up menu.
Enter content.notify.backoffcount in the New integer value pop-up window and click OK.
Enter 5 and click OK. when prompted to enter a value.

Step 11:

CONTENT SWITCH THRESHOLD

You can interact with a loading page when content.interrupt.parsing is set to true. When a page is loading, the application has two modes: a high frequency interrupt mode and a low-frequency interrupt mode.

The first one interrupts the parser more frequently to allow for greater UI responsiveness during page load.

The low-frequency interrupt mode interrupts the parser less frequently to allow for quicker page load. The application enters high frequency interrupt mode when you move the mouse or type on the keyboard and switches back to low-frequency mode when you have not been active for a certain amount of time. This preference controls that amount of time.

Right-click (for Apple users ctrl+click) anywhere in the about:config window and select New–>Integer from the pop-up menu.
Enter content.switch.threshold in the New integer value pop-up window and click OK.
Enter 750000 and click OK when prompted to enter a value.
Step 12:

NGLAYOUT INITIALPAINT DELAY

Mozilla applications render web pages incrementally, they display what has been received of a page before the entire page has been downloaded. Since the start of a web page normally does not have much useful information to display, Mozilla applications wait a short interval before first rendering a page. This preference controls that interval.

Right-click (for Apple users ctrl+click) anywhere in the about:config window and select New–>Integer from the pop-up menu

Enter nglayout.initialpaint.delay in the New integer value pop-up window and click OK.

Enter 0 and click OK when prompted to enter a value.

That’s all! Now all you have to do is to restart the Firefox Browser and your browsing as well as downloading speed will be much faster.

Webcam Password!

Use your webcam as login password  to login to your windows by the advanced face recognition technology. Just follow these links and download to your computer.All you needed is to follow these links:
Luxand Blink
Keylemon

Speed up Google Chrome!

 Just follow these tips and see how Chrome improves in performance -

Disables usage statistics of Google Chrome

This option is used to help in Development of Google chrome, It send your usage data to Google so that based on that they can further improve Chrome. But if you are worried about system performance you should disable it . To disable this go to tools menu > Options > Advanced and uncheck the check box which says Send usage data to Google….

Disable DNS Preload in Google Chrome

This will prevent Google chrome to keep DNS info in their cache. Most of time it is unnecessary if you have a good connection of  at least 256kbps or more. It is recommended only for slow dial up connection or Mobile users who actually spend a lot f time in DNS query during browsing.  to disable this select tools menu of Google Chrome and select “Options.” In the next window,  go to the “Advanced” tab and uncheck the “Use DNS preload ….”

Disable anti-phishing filter

If you are advanced web user and you know how a phishing site look like or you know how to prevent from them you can disable this option. But if you are not at all comfortable working without phishing filters or don;t want to take risk you should keep it as it is . Disabling this not only saves your CPU time but also save your Internet bandwidth.  This option can also be disabled from Tools Menu > Options > Advanced.

Removes navigational data regularly

All of the browsers cache the Navigation data and other info for faster access to web pages you frequently visit. But if your cache size is big or it contains very old pages which you hardly visit once or twice in a month it will start performing negative for you, as web pages will load faster but they Browsers perform worse when navigation data is saved. So it is important to remove navigational data  frequently. To delete this in Chrome, go to Tools menu and choose the option “Remove navigation data” and choose “Delete data for this period” and not the option “All”. So it will remove old data and will keep recent data do this once in a week at least.

Disable Useless function which we don’t use normally


To options that are mentioned below you need to edit the properties of Chrome shortcut which you are using to start the browser. To Change it, right click on the Chrome icon and choose “Properties.” this will open a windows with the  “Shortcut” tab, in this tab there is a box called “Destination”. You have to change things in this box itself.

E.g. To disable Java box,

    * if  you are using Windows Vista it should go like this — : “C:Users\AppDataLocalGoogleChromeApplicationchrome.exe -disable-java”
    * and if you are using Windows XP: “C:Documents and Settings%username% Local SettingsApplication DataGoogleChrome.exe”

The options which we are adding after the full path of chrome can be used one after the other leaving a space between.   You don’t need to write the entire path every time you are using a new options. Here are the option which can be used -

Disable-dev-tools – This will disable Developers tool which is not used by a normal user for sure.

Disable-logging – This will disable looging of browser activity, This log files are useful only in case of Crash or Other error which prevent you from using browsers. if you are experiencing any such problem and need to know the reason you can enable this option. but in general you don’t need these log files. By disabling this you will certainly save CPU RAM and Hard disk space.

Disable-metrics-system – This option will disable gathering of Usage Statistics data. This is used by Google and we don’t need it any how so you can safely disable this option.

Disable-metrics-reporting
– If you disabled Metrics system there is no point in keeping Metrics reporting On, as there won’t be any data to send across. Disable it for sure.

Disable-java – Java on the web is rarely used these days and it greatly slow downs your browsers performance. If you not running any online application which uses Java or Java Applets you can safely disable this feature. This will prevent you from playing number of Online Java Games though. (like Yahoo Games)

Disable-java script – This will disable all kinds of JavaScript from being run on the web pages you visit. This is not recommended at  all as most of the sites these days are using some kind of JavaScript, to display pages. By Disabling JavaScript you will not be able to  see these site properly and they will behave improprly. This is why disabling JavaScript is not recommended.

Disable-plugins – This will disable all plugins including Flash player and other media player. After applying this modification you won’t be able to see a lot of media sites properly including YouTube. If you understand impact of disabling this go ahead and do it otherwise don;t use this option.

Disable-images – This will disable all images on all Webpages you browse, if you are using low bandwidth conection like GPRS or Dial Up it will be very useful for you as it will save a lot of bandwidth for you. This will make your browser an text only browser. So be sure you need it that way before making these changes.

Google has not given much of customization options to it’s chrome users. But Tips mentioned above are quite useful in improving response time of your browser. and some of these are good for saving bandwidth as well.

Speed up Internet Explorer!

Steps to increase speed of Internet Explorer!




Here are five steps to increase speed of Internet Explorer!


1. Turn off Phishing Filter. This feature supposedly helps to prevent you from being tricked into accessing a rogue web site that is masquerading as a bona fide web site. I’ve found this feature to really slow down web access at times. Microsoft released a patch that supposedly fixes the problem, but my computer has the patch and I still notice this feature slowing down web access. If you think you can live without the extra protection of IE7 anti-phishing, you can disable it by starting IE7 and then going to:
Tools -> Phishing Filter
and then clicking on Turn Off Automatic Web Site Checking. Then click OK on the subsequent popup window:
After this, you might get an annoying balloon window at the bottom of the screen whining about Phishing being off. If you click on the X in the balloon, it won’t appear again.

2. Automatically checking for RSS feeds is reported to slow IE7 performance. Most people don’t use this feature (if you don’t know what it is, you aren’t using it), and you can turn this off by going to:
Tools-> Internet Options-> Content-> Feeds-> Settings
and then unchecking all boxes shown

3. Use of ClearType with IE7 has been reported to slow IE7 performance. You can disable Cleartype in IE7 by going to:
Tools -> Internet Options -> Advanced
and then moving the slider on the right until you see Always use ClearType for HTML*, at which point you can uncheck that option.

4. Disabling the SSVHelper Class plugin. There are several reports that the SSVHelper Class plugin causes significant browsing delays. The SVVHelper Class appears to be a non-essential portion of the Java Plugin. I’ve tested several Java applets at various web sites and they all work just fine after the SSVHelper Class plugin is disabled. You can disable the SSVhelper plugin in IE7 by going to:
Tools -> Manage Add-ons -> Enable or Disable Add-ons
Select the SSVHelper Class line, click the Disable button, and then click OK:

5. Finally, you can use IE7 max connections tool to increase the number of connection IE7 will open simultaneously to the same web site. The default is two simultaneous connections, and by increasing this to the maximum number of sixteen, IE7 performance is greatly improved on web sites that load a large number of files per web page. An example of a page with such a large number of files are ebay pages showing the results of searches.

speed up Opera 9!

Tips to speed up Opera 9

Opera is already a very fast browser, but if you would have the choice between fast and faster than fast, what would you choose ? I took the liberty to compile a list of 10 great tips that speed up Opera in several unique ways. Many of the settings can be changed by simply going to Tools > Preferences in Opera but some can only be used by accessing not so obvious ways like ini files.

Please note that everything that I’m describing here worked fine on my computer. It speed up Opera and increased my browsing experience with it tremendously. While most tips will work for any users no matter their connection to the Internet some tips might only increase performance for broadband users.

Disable Name Completion and local network lookup

Whenever you enter a single word into the address field Opera will look in your bookmarks for that name and try to find a local network with the name as well. Server Name Completion tries to append prefixes and suffixes to the name automatically. While this feature might be great for some users it uses time and cpu and should be turned of for faster browsing.

Click on Tools > Preferences, select the Advanced Tab and choose Network from the left menu. Click on Server Name Completion and disable Look for local network machine and try name completion, using.
Increase the time cached images are used before checking for new versions

Opera downloads images to its cache to be able to load them faster (from your hard drive) the next time you visit the website. By default Opera checks every 5 hours if a new version of that image has appeared on the website. If you increase this time you increase your overall performance.

Go to Tools > Preferences and click on the Advanced Tab. Choose History from the left menu and select Every 24 hours or even every week for image checks. You can always refresh the cache manually by typing F5 while visiting the website.
Remove unneeded and duplicate plugins

Type opera:plugins in the address bar, this should display a list of plugins that are currently installed. Take a closer look and see if you find plugins that you never need. For instance if you never use Realplayer streams in Opera you should deactivate it.

To deactivate them open the file plugin-ignore.ini located in your Opera main directory and add the filename of the plugin that you want to disable to it.

Another problem are duplicate plugins that are caused by loading the plugins from Firefox as well. This happens of course only if Firefox is installed on the same system. You can disable this easily by typing opera:config in the address bar. Navigate to User Prefs > Plugin Path and delete the Firefox reference there.
Rebuild your profile if you have upgraded Opera (a lot)

This is only for users who upgrade Opera a lot. I for instance was using Opera since version 6 and always upgraded from the old version to a new one. This could mess up the ini files, especially the opera6.ini file which is still used in all versions of Opera. This could lead to all sorts of problems (slow page loading, high cpu usage)caused by obsolete or incorrect entries in that ini file.

The easiest approach would be to backup the file opera6.ini in your profiles folder of your Opera installation and delete it afterwards. Please note that Opera has to be closed before you do this. Restart Opera afterwards and it should automatically create a new opera6.ini file without all those old entries.

You will loose the personal information if you entered them in Opera and also all tweaks that you might have applied are gone too. It is however not a big problem to enter them again using the Preferences for the personal information and about:config for the latter.
Disable Turbo mode

While this might sound a little bit strange at first to disable turbo mode and present it as a tip to speed up Opera it becomes clear soon. Turbo mode means that Opera pre-draws any image which means that you see part of it although it is not fully loaded. This uses CPU and memory and could increase overall performance especially on slower computers. It should not be noticeable on fast computers though.

Type about:config and enter Turbo into the search field. Disable Turbo Mode and click on save.
Increase the number of total connections

If you happen to load many tabs at once and like to read websites more or less simultaneously you might want to increase the maximum number of connections. This should have a drastic impact on loading times if you use a broadband connection. It should not make a big difference for users with slow connections, such as 256K connections or less.

Type about:config and enter connections into the search field. Change the value of Max Connections Total from 20 to another value, I suggest 32 or 64 connections. The Max Connections per Server setting should remain as it is. You might even want to test a lower setting, for instance 4 connections there.
Reduce the amount of visited pages in history

Opera keeps track of the last 500 visited websites. The benefit is that Opera displays all urls that fit the string that you enter in the address bar. You can then scroll down and load the website without entering the url fully. This can however impact the time Opera needs to startup.

A temporary fix would be to clear the history manually, a better solution to reduce the amount of websites that Opera stores.

Click on Tools > Preferences and then on the advanced tab. Select History from the left menu and either click on Clear next to Addresses if you want to test if this solution really speeds up loading times or reduce the number of stored addresses in the history right away. I never use that feature and set it to 0. You might reduce it to 100 for instance.
Change Expiry Settings

Some Webmasters want you to load their website anew every time you visit it to display new ad banners for instance. This has the effect that Opera will not use the files stored in cache to load the website but request the complete website again from the server increasing load times.

We are however able to ignore the Expires meta tag from websites by changing two settings in the Opera configuration.

Write opera:config in the address bar, hit enter. Search for expiry and change the settings for Check Expiry History and Check Expiry Load to 1.
Save Images Faster

This is probably more a usablity tip than a performance tip but I think it is still nice enough to be included. Instead of saving images by right-clicking on them and selecting Save Image you can simply press CTRL and left-click the image. The download window appears and you can save it then immediately.
Delay mail and rss connections at startup

Opera prioritizes mail and rss accounts during startup. This could mean that you could witness lots of disk activity during startup which could slow down Opera significantly. It is possible to delay each account individually to prevent that Opera slows down during startup.

Locate your accounts.ini file which should be in the Opera mail folder. Every account should have an entry Initial Poll Delay=X where X should be set to at least 60 (seconds) and the rss feed to something like 120 or more.


Delete private data : Go to Tools and click on Delete private data.Next click on details and check the all the boxes except Delete cookies and Clear all wand passwords.
Blocking flash images: Just right click on the flash image and block it for a particular web page but if you want to permanently switch off the flash view of that web site then go to Tools –> Preferences –>Advanced –> Blocked content
 Minimize effect – Go to tools and then Appearance,a dialog box opens.Click on the toolbar tab an uncheck the options which you use rarely.Turn off the progress bar or make it simple.
No icons and favicons – Go to tools –> preference,click on advanced and then browsing.Drop the page icon menu to Show no icon.Click on Ok.Remember every small tweaks helps a lot.
Show web pages faster : Go to tools –> preference and click on advanced tab.Next click on browsing and Drop down the loading menu to Redraw Instantly.This will make Opera to get the web page faster and increases browing speed.
Uncheck Tooltip option - When you hover on Web pages which contains some links, Opera displays small tooltips that add information about the element. If you do not want to see them then go to Tools,preference and click on Advanced.Go to browsing tab to uncheck Show Tooltips.
Reduce the amount of visited pages in history : Opera keeps a track of last visited pages in the form of History. This history keeps increasing whenever you browser more and more pages.To reduce the history of webpages visited,you can go to Tools –> Preferences –> advanced –>history and reduce the addresses to 100 or 200.
Remove unnecessary plugins: To display all the plugins which are installed in the Opera browser,just go to address bar and type this opera:plugins.To deactivate unnecessary plugin you have to go to your main Opera directory and find plugin-ignore.ini.Open it and place the plugin name which you want to disable.

 

Speed up Safari!

This guide explains several methods to speed up web browsing on Apple's own web browser, Safari. None of these tips will help if you are experiencing problems with your hardware/system software or if your ISP is having technical problems of its own. It is worth remembering that due to the structure of the internet there will often be problems completely out of your control, such as malfunctioning/overloaded servers or data links.

It is suggested that you use a method of trial and error to fix specific speed problems - apply one method and then test for its impact. For a more general improvement you can combine tips. Contents
1 Empty the Cache
2 Reset Safari
3 Erase Website Favicons
4 Delete the Preferences File
5 Disable Add-ons
6 Adjust the 'Render Before Display' Timer

Emptying Safari's Cache
Safari uses caching to save recently viewed websites on your Hard Drive. This technique is common place with all web browsers but can cause problems if your cache gets too big or corrupted as your computer will spend excess time searching the cache when it could fetch the data from the internet in less time.
To empty the cache memory go to the Safari menu and click 'Empty Cache...'. You will be presented with a window explaining what will happen. Click OK to proceed.

Note: In many cases emptying the cache may temporarily slow down Safari, especially if you are on a slow connection.

Reset Safari


Apple provide a quick way to empty the cache, clear cookies, erase history and reset autofill information. This can often provide a quick fix for improving performance. The disadvantage is that you will need to re-enter log in information on sites that had previously stored data in cookies.
To Reset Safari go to the Safari menu and click 'Reset Safari...'. You will be presented with a window explaining what will happen. Click OK to proceed.

Erase Website Favicons

Safari's Icon Cache

Most web pages now include a small icon or 'favicon' which is visible in the address bar and next to bookmarks. With the vast amount of websites available over the internet, it is obvious that these icons can potentially take up a fair amount hard disk space. This will cause slow downs due to Safari having to 'sift' through the collection to find the right image. It is possible to erase the icons from your computer and start fresh.
To delete Safari's icon cache using the Finder, open your user folder, navigate to ~/Library/Safari/Icons and delete its contents.
Safari Speed can purge all currently stored Favicons and prevent any new ones from being saved.

Delete the Preferences File


If your Safari Preferences File has become corrupted you may notice glitches and problems when browsing the web. You might not be able to load certain web sites or experience time outs and error messages. By deleting the preference file you may fix these problems, but you will also loose all your settings (e.g Tab behavior and default home page)
Safari stores its preference file (plist) in your user folder. First, make sure you quit Safari. Then, using the finder, open your user folder and navigate to ~/Library/Preferences/. Delete the file named 'com.apple.Safari.plist'.
MacRumors' guide to deleting preferences files provides more instructions on how to achieve this.

Disable Add-ons
Add-ons, such as PithHelmet or Saft, whilst extremely useful, can be the source of performance or stability issues. Fortunately, most utilities like these have an option to disable their functionality to allow you to troubleshoot. You could also choose to remove them from your computer altogether. To do this follow the instructions on Apple's Safari add-ons technote.

Adjust the 'Render Before Display' Timer

Safari uses a technique to decrease loading times by pausing for 1 second before displaying content so far recieved. When information is first downloaded from a website, Safari uses this time to commit maximum resources to rendering the HTML code before displaying on screen. It is possible to adjust this timer to force Safari to display a page earlier. Note that this will actually increase load time as Safari is not able to render as quickly if it is also updating the display at the same time, but it can be considered as a perceived performance increase. To change the timer follow these steps:
Quit Safari
Open a new Terminal window.
Type the following:
defaults write com.apple.Safari WebKitInitialTimedLayoutDelay 0.25
You can substitute 0.25 for any numerical value from 0 to 1 seconds (e.g 0.5 or 0.75.) 1 is the default.
Press enter to save.
Close the Terminal application and re-launch Safari.
Test for changes

Your mileage may vary, and if you find little difference you might wish to reset the timer to its default settings by performing the above steps again and entering 1 as the numerical value.
David Hyatt (a Safari developer), discusses this delay in an archive of his Surfin' Safari Blog here.


Here are few simple tips to increase Safari performance.
Disable Add-ons


Add-ons, such as PithHelmet or Saft, whilst extremely useful, can be the source of performance or stability issues. Fortunately, most utilities like these have an option to disable their functionality to allow you to troubleshoot. You could also choose to remove them from your computer altogether. To do this, follow the instructions on Apple’s Safari add-ons technote.

Adjust the “Render Before Display” Timer

Safari uses a technique to decrease loading times by pausing for 1 second before displaying content so far received. When information is first downloaded from a website, Safari uses this time to commit maximum resources to rendering the HTML code before displaying on screen. It is possible to adjust this timer to force Safari to display a page earlier. Note that this will actually increase load time as Safari is not able to render as quickly if it is also updating the display at the same time, but it can be considered as a perceived performance increase. To change the timer, follow these steps:

Quit Safari
Open a new Terminal window.
Type the following:
defaults write com.apple.Safari WebKitInitialTimedLayoutDelay 0.25
You can substitute 0.25 for any numerical value from 0 to 1 seconds (e.g 0.5 or 0.75.) 1 is the default.
Press enter to save.
Close the Terminal application and re-launch Safari.
Test for changes

Your mileage may vary, and if you find little difference you might wish to reset the timer to its default settings by performing the above steps again and entering 1 as the numerical value.

There are few more tips which includes: Deleting Cache, Resting Safari, Removing Favicons and Preferences file.

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