Referring to your other thread, sorry I don't check the boards too often sometimes. Often I check them, and then again in a few days.
But the amdk8.sys is only installed with the cool and quite tech from amd. If there is nothing in the add/remove referring to cool and quite, look for an amd processor driver, that is what the amdk8.sys is part of otherwise.
Or if you are feeling really adventurous you can manually remove the file, but that might have un-intended side effects.
**Warning not for novice users **
The file lives in the windows/system32 folder
Windows will default to using its own processor driver if it cant find the amd one. but just be sure to backup the file in case of some unforeseen problem.
It appears that there is more than one issue going on, but you never know for sure until you start fixing them one at a time, and then testing for results.