Windows XP Professional suddenly slows right down, and if I look at the performance graph in Task Manager, it shows 100% of the processor is in use all the time. The guilty file appears to be nvsc32.exe. Any suggestions? Robin Cox
The Task Manager, invoked by pressing Ctrl-Alt-Del, is a good way to check for processes that have run wild. In this case, the bad news is that nvsc32.exe is usually W32.Bropia.N, a fairly new variant of the W32.Spybot worm. This uses either winis.exe or nvsc32.exe when it creates a file in the System directory. If your anti-virus scanner has missed it, Symantec offers a removal tool here
