Windows: GRUB rescue mode, unknown filestream

My windows suddenly booted into GRUB Rescue mode and I can't get out of it, I would greatly appreciate any advice on this problem

When I try to run startup repairs I get the error message saying that it is unable to diagnose problems with the return messages:
Problem event name: StartupRepairOffline
Problem signature 1: 6.1.7600.16385
Problem signature 2: 6.1.7600.16385
Problem signature 3: unknown
Problem signature 4: 21200648
Problem signature 5: AutoFailover
Problem signature 6: 3
Problem signature 7: NoRootCause
OS version: 6.1.7600.2.0.0.256.1
Locale id: 1033

Is there anything I can do short of formatting the whole hard drive and reinstalling windows?

Try removing Linux.

To Remove Linux take look at this post:
Error 0xc0000225 on boot

Remove Grub - Restore Windows 7

Uninstall GRUB or delete its partition if you haven't already done so.

Mark Active the Win7 or it's 100mb SysReserved Partition (preferred if you have it).

Then run Startup Repair - Run up to 3 Separate Times.