Having been helped by so many on this forum, I thought I'd help someone who doesn't have a Vista Repair Disk (...like ME!) and need one badly (...like ME!). Out of pure frustration and out of all other options to resurrect someone elses computer, I stuck in my WINDOWS 7 REPAIR DISK and it actually worked and repaired the Vista startup problems!!! Give it a try the next time you hose up Vista startup. My thinking was ...Windows 7 is a close "cousin" of Vista... why not?