I have an HP 15-n058ed laptop with an AMD Radeon HD8670M GPU and an HD8400 dedicated one in my motherboard. My CPU is an AMD A6-5200 and I have 8GB of DDR3 RAM. It all started when i got the first notification to upgrade my driver which was recommended. The moment I did this my brightness was locked to the max and my laptop had become a whole lot slower, so I restored my laptop to a restore point before the update and everything was normal again. After a while I decided to go to the AMD driver site and downloaded the newest drivers which was recommended for my GPU (I did the auto-detect), beacause I thought that my GPU wasnt being detected and it was using the dedicated one for everything, but this time the update just completely broke my screen. I could see the HP logo when starting up my laptop, but when the login screen is supposed to come (so I guess when windows launches) the screen just turned completely black. At this point I decided to completely restore my laptop to factory settings and be released from this issue for once and for all. This was indeed the case until I made the upgrade back to Windows 10 again, when apparantly newer drivers were automatically installed together with a newer version of the catalyst control center (software version Radeon: 15.11 and driver version: 15.30). At this point my laptop was incredibly slow and I couldnt even watch youtube video's or twitch streams without lagg and was playing league of legends with 12 fps and constant lagg on lowest possible settings while previously I was easily hitting constant 60 fps on medium/high settings. I also kept on getting a notification to upgrade my driver to 16.30 (recommended) and I did this thinking it would fix it but immediately after my PC shut down and wasn't being able to start up at all. So I started it up with safe mode and restored it to a restore point before installation (again). So now I'm back again to the point where I cant do anything because it's so slow.
I'm sorry for this information overload, but it's a very frustrating problem and it has consumed at least 30 hours of my time and I really want it fixed now. All I want is to get my old performance back, whether that is by installing my old drivers again (thought it was 13.251 but not sure) or by fixing my current one, I don't mind. But I don't know how to do both. The reason why I thought why my GPU wasn't being used is because in my device list it is shown as the HD8600M series instead of just HD8670M and in games which show what my GPU is it states my motherboard GPU instead of the other, more powerfull one (and this is still the case). But this could also just be me. Thanks for your time.