Thanks guys - really appreciate the advice.
I have one further stupid question. We really want to format the hard drive completely. The computer is so slow and cluttered with rubbish and there is some powerspy thing that keeps cropping up, we don't know if her ex put it on there to snoop or what. Anyway... my question is?
Will this linux thing (someone gave me the link earlier - Linux Mint 10) just give me the option to format the hard drive once I've installed it as my OS?
Do I need to format the drive manually? What is the best way to do this? I've never done anything like this before. Feel like I should know, but I just dont.
If you use Linux the clutter on Windows is irrelevant, whether you format the drive or not.
But one of the options when you install Linux would be to use the whole drive, so anything that's already there will be deleted (and the drive formatted) as part of that process.