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amon.sys caused BSOD on Win XP

posted 27 Feb 2009, 18:11 by Aaron Leung   [ updated 27 Feb 2009, 19:12 by Aaron Leung ]
Attended this case where the Win XP machine restarted itself whenever booting up to the login screen. It booted ok in Safe mode though. That means it's most likely a software issue. So I turned off the automatically restart upon system failure option in XP and booted in normal mode again. Only then the BSOD occured and it showed that the culprit was amon.sys.

amon.sys is a component of the NOD32 antivirus software which was found on the client's computer. Some people said that the file can be removed safely and NOD32 would regenerate it. After the file was removed, surely the computer started up without the BSOD. But NOD32 generated unstoppable error messages when starting up so I had to uninstall it and install it again. Everything worked fine after that.
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