How to dual boot windows 8 with 7/vista/xp

1. Back-up your files on an external drive just incase something goes wrong.

2. Choose and download windows 8 from here.
3. Burn the .iso file on a dvd.
4. Restart your computer and then press "key" to boot from disk

5. Choose Custom (advanced)  install on an empty partition that has at least 20 Gigabytes. (look up)

6. And after 10-30 minutes (depending on your PC) of waiting you will be Done!!!