Wow, I'm also not a computer expert,
but I'm sure this isn't supposed to happen.
Symantec software deletes PC files
By Mure Dickie in Beijing
Published: May 18 2007 22:45
Software sold in China by Symantec, the world’s largest computer security company, Friday suddenly attacked the very PCs it was supposed to protect.
The surprise switch by Symantec’s Norton anti-virus software from digital gamekeeper to poacher hit users of Chinese-language versions of Microsoft’s Windows XP operating system.
An online update of the anti-virus software prompted it to confuse inoffensive but essential XP files as a hostile “Trojan horse” and to delete them. Affected PCs that are switched off cannot be restarted unless the files are reinstalled.