BOOTMGR is missing (URGENT HELP NEEDED!)

Okay, so this may not be the right place to ask, and if not, my apologies. Anyway, I was in Disk Management, and I accidentally selected my HDD as the 'Active' drive, but my OS is installed on my SSD, so I quickly right clicked on the SSD after and selected 'make Active' on that thinking that would counter that problem. Upon restarting my computer I get this pop up:

BOOTMGR is missing.

I unplug the HDD and try booting the computer again with just the SSD plugged in, but I get the same issue.

Is there any way to sort this out without having to reinstall Windows 7 yet again?

Thanks for any help!

Arc said:

Try Startup Repair , and if not worked, try Startup Repair - Run 3 Separate Times .

I think I sorted it, I done a repair with the Windows 7 disc. It booted up fine anyway. I'll let you know if I get anymore problems. Thanks :)

Just confirming, all is fine. Thanks again :)