I had Ubuntu and Windows 7 installed, but since I never used Ubuntu and it used 130GB of space I decided to delete it. I deleted two partitions and completely wiped the one with the data. The other one – which I believe had the startup – wasn't wiped. By the way, my CD drive doesn't work.
At first I got "error: no such partition" in GRUB. Eventually I managed to put the Windows Recovery Disk on a USB stick and made it bootable using PowerISO. Windows Repair couldn't fix the problem automatically.
I then read some forums and asked somewhere else and they said to download GParted and put that on a USB stick, boot from it, and edit my partitions there. I downloaded GParted and tried to set it up the same exact way I got Windows Repair to work (with PowerISO), but it didn't work.
I formatted it as FAT, FAT32 and NTFS (but exFAT didn't work, that's the only one I haven't tried). I tried a program they recommended called Tuxboot, too, but that didn't work. I always got "error: no such partition". I've tried all the USB slots.
How can I recover the Windows 7 boot partition?
Best Answer
I managed to fix it by following the instructions at SevenForums.
So basically, if you have this problem, download PowerISO, format a USB drive, click Create Bootable USB drive, select the Windows Recovery Disc (you can download it online), boot from USB, click command prompt, and do what it says there.
For me, bootsect wasn't there, so I typed in
Bootrec.exe /FixBootand thenBootrec.exe /FixMbrlike a link in that link says. Then I restarted my computer and it worked.