What if you just want to run Startup repair off the install cd without losing all your tweaks?
Update: it looks like the discs are no longer free.
Put a blank CD into the drive, and then snag the big Write button.
That’s about all there is to it… you now have your very own Vista Recovery CD.
Download ImgBurn from Ninite
Download Windows 7 or Vista Recovery Disc from neosmart.net