Re-installing windows 7 without the disc

[dajones]

Thought i'd chuck this here to help people out if theyre looking to do this,

http://www.pcworld.com/article/248995/how_to_install_windows_7_without_the_disc.html

Basically you download the windows 7 from a microsoft certified source and you install using your Product key on the certificate sticker under your laptop or on your tower.