I tried to format my computer this week and I followed all of the instructions to format and reinstall. Booted of the DVD, format C:, and install. Got all of that done then I installed SC2. Restart the computer without the Win 7 disc in and the F'ing computer booted back to the orignal version of 7, the version I just formatted!! WTF. Is it because I didn't format the system reserved partition as well?