Hey guys, Never mind. I solved the problem by running dskpart from the cmd prompt from the installation cd, Selecting the appropriate partition as active, then letting Windows repair itself (once it recognized there was a Windows OS on it, it was able to fix itself).

Hello, I have a rather complicated issue. The short version: I have Windows 7 installed to a 100GB partition, whose data is not corrupted. The 100MB system required boot sector still exists, but I assume it is corrupted. Ultimately, Windows 7 won't boot. Details: I recently tried to install Ubuntu 10.10 x64 on the same hard drive. To this, I formatted the drive as follows: 100MB System Required Primary Partition 100GB Windows 7 OS Primary Boot Partition Extended Partition: 750GB Program Files Logical Partition & 1TB Data Files Logical Partition 100GB Ubuntu 10.10 x64 Primary Boot Partition However, after installing Ubuntu (after I installed Windows), it always automatically booted Windows 7, and no matter what I did, I could not get it to recognize the other OS. Finally, using EASEUS (which is also the program I used to set up the partition scheme) I noticed that the Ubuntu partition was not active. So in the advanced options of EASEUS I set that partition to active. The program warned me it might not be able to boot Windows 7 again if I activated the other partition; however, I believed that GRUB (with Ubuntu) would give me the option to boot Windows 7 or Ubuntu, or that I could at least recover the Windows 7 boot later. However, after setting the partition active I can no longer boot into Windows 7, and Ubuntu still doesn't boot. Instead I get a GRUB rescue command line, which, as far as I can tell, has been incredibly poorly documented online. I got sick of trying to fiddle with GRUB rescue, and I wanted to see at least one OS active again, so I inserted the Windows 7 installation cd and tried the recovery options. None of the automatic options worked, so I went the cmd way with bootrec.exe and tried a couple of the options there. Nothing seems to be working. But I am pretty sure all my data on the primary Windows 7 OS partition should be fine. Does anyone have any idea how I could recover the Windows boot? Or the Ubuntu boot (both would be great!)? Thanks for the help.