I need to replace a laptops drive. I have this method in mind (http://www.pcworld.com/article/248995/how_to_install_windows_7_without_the_disc.html), but would like a backup plan. I also need to find a way to reinstall Office. The problem is that this laptop was bought in a shop and has no discs. It's owner isn't very good with computers, so no backups. I have the OS ProdKey and the Office prodkey, and I fear that they'll need to buy software again.