On a previous question I posted, I asked for help on fixing my Windows Vista box because it keeps going to a blue screen. No one seems to have the answer, so now I want to install Windows 7.

Can I install Windows 7 without having to reformat my hard drive and having to lose all my files?

I've already confirmed the hardware is working because I installed Ubuntu 9.10 on my external hard drive and it runs on my system fine. I tested the memory using Vista's memory test and Ubuntu's memory test.

Here's the previous post: [Windows Vista BSOD on my desktop](https://superuser.com/questions/125897/windows-vista-bsod-on-my-desktop)