Viruses on PC, instant log out upon logging in to User, help please

[AssaTM]

Hello all, my Aunts PC has two Trojans on it, and as I am not near her PC yet i'm gonna have to guess a bit and say one of them has GEN in it and one of them begins with V, both seem to have a few different versions so to speak, but anyway, I cleared it up a bit, as when I logged in to a user it instantly spammed me with Virus warnings from the Avira Antivir, but it didnt actually delete them, and I heard some methods to remove them both, but the problem is now, whenever I log in to a user it INSTANTLY logs me back out again, so I cant do anything, is there any suggestions to fix this? Any help would be greatly appreciated, Many Thanks

 

[Dolph]

Try logging in to safe mode.

Failing that, portable hardrive, backup, nuke windows install, reinstall fresh and a full virus scan of the portable drive before copying the cleaned files back.

 

[romperstomper]

tell your Aunt to stop looking at porn

Funny when someone mentions on here a virus its always on a friends pc never there own ! Oh the shame

First thing I do is stop it starting up in msconfig and run your ant-virus in bios if it fails in windows .

 

[AssaTM]

Haha trust me my PC is usually kept relatively clean, and if I knew how to do that, I happily would, i'm fairly handy with computers, but even thats stretching it for me haha