Trojan Virus.?

I got the vundo (or something to that effect) trojan virus. The one that changes your clock to military time, gives you false virus alert messages, tries to change your homepage to download win anitvirus 2008, and gives you a red hazard symbol background on your desktop. I ran all the programs that other askers were suggested on here, up to and including avg, panda antivirus, avast, malwarebytes, and smitfraud, which kicked it, and it has been neutralized, however, it still takes forever and a day for my computer to boot in normal mode. I'm talking 20 minutes, here, did I miss something? What can I do to get it running at it's normal speed?

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