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Possible Duplicate:
What are the first steps for diagnosing a slow machine?
Why does my computer run fast after a clean install?

I am using Windows Vista. It has been installed for over two years, and is getting slow.

Should I reinstall the operating system to improve performance?

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marked as duplicate by RedGrittyBrick, grawity, Moab, Nifle, ChrisF May 18 '12 at 11:16

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Your question does not account for the hardware you have, including RAM, hard drive, CPU, etc. It's not possible to answer in its current form, except to say that Windows always seems faster when you reinstall it, due to less cruft on the drive, and in the registry. You may benefit from more RAM, a faster CPU, and/or a faster drive. – user3463 May 15 '12 at 6:41
Slow to start? Slow to launch applications? Slow within application? Slow when you switch applications? Is Internet access slow? – David Schwartz May 15 '12 at 7:26
Dude, its Bit – Moab May 15 '12 at 16:38

After a few years you may have added up a lot of software you no longer need. Even if you don't use it things clog up your memory through startup listings.

Do all of the following to make your computer faster:

  1. Uninstall everything you no longer need
  2. Press Win+R and enter msconfig. In the Startup tab you'll see alot of listings for startup items. Some you may not need (exercise caution and dont just disable everything)
  3. Install a faster and lighter antivirus. MS Security Essentials and Avast have worked well for me.
  4. If you don't have an antivirus there's a high chance your issue is a virus, so install one
  5. Upgrade your components if you can. My Vista laptop came with only 1GB of RAM. 1GB!!
  6. Consider upgrading to Windows 7. They've done a pretty nice job of making the OS more efficient, you'll notice it eats less battery on laptops as well.
  7. Get rid of any toolbars for Windows Explorer, Internet Explorer or Firefox.
  8. Get rid of any Explorer context menu items
  9. Update your drivers and software, as it may be buggy apps hogging resources

Seriously though, uninstalling things you don't need, and having a light antivirus will help you out.

You can get a good view of what's making things slow by using something like Process Monitor. Having said all that, there could be annoying programs that remain which is where a format could do some good.

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Thanks Jay for your suggestion. – Selena Jain May 15 '12 at 7:04

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