[malfoy_G_PIR]

You will need a Windows 7 DVD.
First boot via dvd, then click repair your computer.
Then you will get this screen:

Click on System image recovery. Don't worry we don't need any system image, this is to just show explorer so you can copy your files to your pendrive.

You will get this:


Click on load drivers. Now you will get a classic-explorer. You won't see copy-action dialogbox and such, but it will work. So copy your files, and do a clean install.

thank you.