The PC is a HP EliteBook 8730w laptop. I had no issues with Windows 8 or the Windows 8.1 preview. But after running the Windows 8.1 Update from the store my computer will not boot unless In insert my recovery USB drive and try to repair. The repair fails.
However after I power of the PC and remove the USB drive, the PC will boot correctly once. I would leave the PC on but it shuts it self off at night. And yes I have checked my power profile, it is set to never.
The only thing I have found online is a possibly corrupt video driver. I uninstalled the video driver reboot and it did not fix the issue.