Virus help

[Wossi]

The other day my friend informed me their laptop was infected and I'm unable to have a look at it tonight. Only now they have told me that it won't boot past the welcome screen.

I'm popping over tonight to see what I can do, what programs do you recommend I use to try and sort it out? No idea what exactly is up with it yet.

 

[Wossi]

Cheers, will d/l everything when I get home and see what I can fix.

 

[Wossi]

I was told that the wallpaper had been changed to say something on the lines of "Your're computer is infected...." and so on and that she couldn't run a virus scan as it wasn't letting her.