I used to have Vista on my Dell XPS m1530, but I installed Windows 7 over it a few weeks ago. It worked fine until now. After the BIOS loading screen, it just says "NTLDR is missing. Press any key to restart". I searched for solutions to this online, but none of them worked. I then tried to reinstall Vista over Windows 7. At the partition select screen, I had three partitions, two of which are too small, so I chose my main partition (which has 158GB free). When I selected the partition, it said "Windows is unable to find a system volume that meets its criteria for installation" I chose to reformat the partition with the hope that it would get rid of that message, but now it still says "Windows is unable to find a system volume that meets its criteria for installation" On top of that it still says "NTLDR is missing" if I don't boot into a cd. What should I do???? arhhhh!!!