You neglected to update XP and now get to deal with a worm. Try this discussion:
http://reviews.cnet.com/5208-6132-0.html?forumID=32&threadID=21582&messageID=233395
Bob
hi
i have just installed xp pro on my pc and every so often be it 10 mins or 30 mins i get a message on the screen telling me it is shutting down ref c:\windows\system\32\isass.exe,has anyone any ideas please.
cheers colin

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