How do you remove Trojan horse Downloader Qdown C?

Answer 1

I use AVG for anti virus and when I was reading about some of the other Downloader trojans, I found one that said AVG found it in C:\System Volume but scan after scan found the comp to be clean. I took the advice that someone listed for getting rid of it and stopping that annoying pop up.

First, if you are running XP, you need to disable your restore, then restart your comp, then once you have rebooted, enable restore again. It worked for me, no more pop ups and all scans come up with nothing!