Okay, I'm posting on behalf of a friend who's computer is a bit fucked. Please help if you can, I want to get his computer sorted out.
The problem is that his browser, on opening, opens a bunch of tabs, throws up popups, redirects the browser and it's disabling java most of the time. I wouldn't bother you guys with this, but I asked him to do a system restore to get the virus off his computer, but "the virus/trojan thing convinced my computer that it's not had any changes made to it so a system restore just told me 'no changes were made, nothing we can do'
So basically his computer is flat-out refusing to system restore, which suggests the virus has corrupted those? I've never really had to deal with viruses before, so this is all kind of new to me.
Other information: He's running Windows XP and has tried IE and Firefox. He doesn't want to try Chrome to see if it bypasses the virus as he's more interested in getting it off his computer. He's running Ad-Aware, Spy Doctor and AVG.
I suggested he reinstall his OS and he says he's lost the CDs. I'll pester him about that more if it's the best solution.