Windows XP creates restore points
regularly. They include information on the system's state. If
something causes Windows to become unstable, you can use a
restore point to go back in time to a good configuration.
However, a restore point can also
house a virus or Trojan. So, when you clean a virus or Trojan
from your system, you have to delete your restore points.
Otherwise, if you were to use an infected point, it would
re-infect your system.
The solution is to simply delete
the restore points. To do that, click Start>>Control Panel>>
Performance and Maintenance>> System. Select the System Restore tab. Click the
box next to "Turn off System Restore on all drives." Click
Apply>>OK.
Reboot the computer and all restore
points will be wiped out. Return to the System Restore window.
Remove the check from the box next to "Turn off System Restore
on all drives." Click Apply>>OK.
Windows will automatically create a
new restore point. It should be clean.
If you ever need to use System
Restore, access it by clicking:
>>Start
>>All
Programs
>>Accessories
>>System Tools
>>System Restore.
>>Select
"Restore my computer to an earlier time."
>>Click
Next.
>>Click a
bold date on the calendar and click Next.
>>Then click
Next on the
following page.
System Restore will restart the
computer and turn it back to a previous configuration.
System Restore does not affect the
files you create so you don't have to worry about losing your
Christmas letter to your relatives. But if something has gotten
into Windows and your computer is unstable, System Restore can
be a lifesaver. Personal files left on your desktop may be lost
so please file things away before restoring to an earlier time.
Learn more about system restore
here.