So my problem is simple, I have been trying to partition my harddrive so that I can install windows onto it. I ordered 10.7 from Mac and they sent me a code to download it from the app store, which it is downloading now. When the download is complete would I be able to burn it to a CD and use that to reformat my HD and fix my error (files cannot be moved, etc)? I do not have the disk that came with my Mac. Alternatively, would I be able to boot from my backup HD which has my time machine backed up on it and then use that to reformat my HD? I also wanted to upgrade to 10.7 from my current version (10.6.8) so if it doesnt work then it wasnt a wasted purchase. Cheers!