Disable onboard graphics in Device Manager (don't uninstall!)
Plug graphics card in & out.
If detected, try installing the driver.
If not, enter safe mode.
Run a driver sweeper program to clear all traces of AMD driver files.
Reboot and try installing drivers.
As it turns out I found a (at least temporary) solution before reading your suggestion. [ P.S. What AMD suggests is remarkably similar]
For some reason, reseting the bios to their defaults before starting the uninstalling phase allows for a complete install, but then the next boot after installation will fail.
What makes it stranger is that none of the bios change when I do the uninstall OR the install, the reinstall probably does omething in the background, IDK
I've been thinking about getting a boot log and then getting rid of whatever is causing the problem, but I'll probably make do by putting the PC in sleep mode instead of shutting it down until someone suggests a more permanent solution.
Or until I have some spare time and won't mind not being able to play some really good games I just bought
Hmm, sounds like that BIOS might have something buggy. Have you checked if HP has released another update for your BIOS? Flashing your BIOS to a newer version may help as I've found with most of my builds which use newer parts/