Unable to repair Win7 installation.

My Win 7 installation became corrupt. When I try to do a repair with the OEM 64bit disk, I get an error message :
"Windows could not retrieve information about the disks on this computer"
I'm at a loss as where to go from here. Any suggestions?

Tech Support Guy System Info Utility version 1.0.0.2
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Hard Drives:
Motherboard:
Antivirus: None