I installed a copy of Windows 7 on a partition and decided to delete the partition. After I did that, my Windows XP won't boot properly anymore. When it gets to the boot screen, the blue bar scrolls normally for about a second then lags like crazy. Its been 5+ minutes and my computer still hasn't booted. I can't even boot in safe mode. I tried the Windows XP repair and recovery but none of those worked. Please help.