specs intel 2600 mem 16gb nvidia 580 gtx gigabyte GA-P67A-D3-B3 board with custom uefi bios from rev2 board. had windows 8 in install in uefi mode. didnt like the way some program where behaving. went back to windows 7 what I did disabled uefi mode completely. everything set to legacy mode. made sure boot drive was still default started up windows 7 install on usb and shift f10 and diskpart, used clean command to remove gpt from drive and finished installing windows 7 updated and installed windows loader. as my key no longer works(too many different builds and I get into fights with phone activation computer). anyway for some reason now when windows boots up. there is a delay after post. a flashing cursor shows partway down screen, then moves up the screen and then boots. could of something happened to the windows loader?