Windows won’t start, startup repair cannot repair automatically.

First off, I have a Dell Optiplex 990 - Windows 7 Pro, which wasn’t listed...not a 775. Worked fine last night, no changes to hardware or software, shutdown normally without issues. Today, will not load windows.

Startup repair cannot repair this computer automatically.

Problem Signature:

Problem Event Name: StartupRepairOffline

Problem Signature 01: 6.1.7600.16385

“ “ 02: 6.1.7600.16385

“ “ 03: unknown

“ “ 04: 21198191

“ “ 05: AutoFailover

“ “ 06: 10

“ “ 07: NoRootCause

OS Version: 6.1.7600.2.0.0.256.1

Locale ID: 1033

Tried to restore from previous known good restore point and Windows fails before I can get there.

Fails when attempting to boot in safe mode, with networking, and with command prompt.

I don’t have a disc as I bought the pc used, but I have a bootable Windows 7 Pro usb that I can boot from.

Tried rebuild boot command found in other threads, it says it finds 0 copies of Windows.

I could completely reload windows, but most foolishly my restore points are only in Windows. I have most or my important info backed up on external hard drive, but most foolishly, I don’t believe I have any restores backed up outside of the internal drive.

Hopefully there is a Windows wizard who can give me advice to work a little magic and give me the opportunity to save an off-site restore from now on. I have a lot of big programs I really would rather not have to spend the time reinstalling if possible.

Thanks in advance for any help.