I had Windows Vista and Windows 7 in dual boot. Vista was the first to be installed, then Windows 7. I wanted to delete the Vista partition, and I set the Windows 7 parition as the main one in the Disk Management. Since then i can no longer boot from none of the partitions. I did all commands, tryed repairing windows startup to no good result. I eventually formated Windows Vista using Windows 7 installation disc. Then i tryed to reinstall Windows 7 on that partition having 2 windows 7. I thought that would allow me to boot to the newly installed OS. However it still didn't work. The boot files were on the Vista partition. =S. What should i do?