I have Vista on my C: drive and XP on my D: drive and am wanting to loose Vista and re-format my C: drive. So far, I've amended the XP boot file using the 'boot\bootsect.exe/nt52 All' command so that only XP opens up on re-boot, and have then tried (via the 'run/cmd' option) using the 'format c: /q' command to re-format this drive but I get the error message 'System partition is not allowed to be formatted'. Can someone help please.