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Get a free PC safety scan

Windows Live OneCare safety scanner is a free service designed to help ensure the health of your PC.

  • Check for and remove viruses
  • Get rid of junk on your hard disk
  • Improve your PC's performance
New: Windows Vista users, try the beta edition of the scanner, just for Windows Vista.


Fix specific PC issues

Use the full service scan to check everything. To help fix particular problems on your PC, turn to the individual scanners below.

Heard about a threat?
Note: Some threat information is available only in English.

Get continuous protection for your PC with Windows Live OneCare

Download Windows Live OneCare, the new comprehensive, automatic, and self-updating PC care service that helps protect and maintain your PC. Download the free trial.

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