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
Windows Vista users, try the Windows Vista edition of the scanner.
Firefox users: see the special instructions for running the scanner using Firefox.
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.
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