1. Get a linux LiveCD or DVD
2. Get a USB flash stick or USB hard disk
3. Pop the CD/DVD into the CD/DVD tray
4. When your computer is booting repeatedly press F2 or F8 in order to get to your BIOS settings screen (also sometimes Esc key works)
5. Set primary boot to CD/DVD drive
6. Boot up to the LiveCD
7. Choose the option that allows u to run the OS off the disk (not install)
8. Once in the OS, connect the USB drive
9. Mount your Windows disk. You can Google on how to do this or follow
this10. Drag and drop files from the mounted HDD to your USB drive.
11. Enjoy.