How do I back out of a failed Win7 install attempt? I started a Win7 installation on an XP system and some files were installed on my c:\ drive that force me to chose between proceeding with the Win7 install or using XP. Because of the error messages that the Win7 install generates, I'd like to back out of the failed Win7 install and start over from scratch after making the XP configuration less complicated. Is there any way to manually delete the Win7 pre-install files so I revert to a purely XP system configuration? I've been around since IBM PC-2 and MS-DOS days so I am more than familiar old fashioned, one-at-a-time file deletions, if that is what it takes. The question is what files should I delete? Alternatively, I have noted that in the 'Program Files' folder on my C: drive, there is new sub-folder titled 'Microsoft Windows 7 Upgrade Advisor'. Presumably this entire sub-folder and its contents can be deleted. I also noted that what I think is this same sub-folder is listed in the 'add or remove programs ...' section of Control Panel. Would removing this sub-folder with Control Panel accomplish what I am trying to achieve? If I am off on the wrong track, any and all advice on how to temporarily get back to my purely XP configuration would be deeply appreciated as I am no Windows expert. Thanks, in advance.