I just took my hard drive (running windows 10) out of my old computer and added it to a functioning Windows 7 machine and made it the primary boot device, while moving the existing Windows 7 hard drive to the secondary. I'm guessing it's because the motherboard is different than the one the primary drive was originally installed on, I'm getting the "epu 4 engine eaccessviolation error" message when I first boot up. Is there any way to correct this without having to do any reformatting of hard drives? Thanks for your help.
-Renevious
-Renevious