Now Ive reformatted before, but heres my situation I bought a notebook from Alienware a couple months back. A little bit after vistasp1 was released I wanted to reformat but realized they never gave me the operating cd. So I called them up they sent me a new one I'm just concerned that Ill have problems activating it (yes I have the code# under my computer) but will this cd work if it does/doesn't have sp1 installed or not? Cause I don't want to reformat then find out I have problems activating vista...Thanks if you can help.