A customer had just upgraded to Windows 8.1 and after he did, the computer would no longer boot. A blue screen appeared, in same color as the Windows 8 blue screen of death, but with white lines and blocks instead of anything readable.
Some drivers do not upgrade properly to Windows 8.1. An often overlooked driver is the one the antivirus program uses. The ultimate problem was the version of McAfee that came with the computer was not compatible with Windows 8.1. (Not that I was surprised that McAfee was the cause of problems.) I had to remove McAfee in safe mode. Continue reading