If it's available then you have professional or upwards. Type CMD in the search box, in the list right click CMD and run as admin. Type sfc/scannow and let it run. If it shows a problem not resolved then run again. See if that helps.
Sounds as you've got a bad installation or a unstable bios, like mine, but that's another story.
Tried following MS fixes, still no joy. It reports no problems with Windows Update. Unplugged the PC, rebooted, you name it, I think I've done it. The annoying thing is that the prog I'm trying to run was listed in the upgrade advisor report as being compatible. I'll keep on trying.