Posted 28 August 2006 - 10:39 PM
Some versions of the Windows operating system allow the user to create, or to automatically create, restore points, or pictures in time of certain key files used by the operating system. Restoring your computer to one of those points in time will change the content of those key (e.g.registry)files.
Now it is true that some malware will attempt to hide in these files, because Windows "protects" them from being interfered with or deleted (by accident, for example).
Now, when you turn off System Restore, all availabe restore points are "lost" to the system (they may be there on the drive, but Windows just can't find them or access them). If these system restore points (or files) contain malware, the malware also vanishes.
The best procedure would be to disable system restore, run a thorough anti-virus scan of the entire computer's drive(s) allowing it to fix any problems it finds, and then to turn Restore back on, and manually create a "clean" restore point.
Whereof one cannot speak, thereof one should be silent.