Problem:

Windows 7 64 is now installed. Works fine. You do a restart and it goes past post then black screen then slight white washed black screen as if it’s going to load Windows 7 logo but doesn’t. Just stays there. No errors.

Turn off and on again and it’s fine. It’s only if you do a restart.

Fix:

“In bios, advanced, power on options, try setting post mode to either Clear Memory or FullBoot.
I had the same restart issue and the above change resolved it.”

I set it to clear memory and it’s fixed it.