If you both had done a good clean install instead of the upgrade you most likely would not be having problems. So far I have installed Win 8 Pro on 2 laptops (3 to 4 years old each) by formatting the partition during the install process, then installing Win 8 Pro. Both work exactly as they are supposed to. Everything works correctly, done!
The Upgrade install leaves too much to chance, and how good the original OS is.