Yes.. okay now that you're back we can resume the troubleshooting.
I strongly suspect that is it those NVIDIA entries which are remnants from an incomplete driver uninstallation are causing the issue... most probably because you didn't uninstall the previous drivers properly using the Control Panel.
I need you to do a few things:-
(We're basically going to purge the system of every previous graphics card driver installation plus the rogue entries from the pnputil list)
Before you start this to-do list, i assume you still have the latest Driver Sweeper installed (version 3.20)? If you do, good, if you don't please download and install it as we will be using it in this procedure. Having the driver file I told you to download and install from AMD earlier on from their website is important too
Also, check the Programs and Features list of installed programs for any NVIDIA entries that may still be there (except for PhysX of course, which is required for your games and is Vendor agnostic), and uninstall them.. and reboot again before proceeding.
(read first till the end, reply if you understood everything, and then start the process)
Firstly, I want you to look for the AMD Catalyst Install Manager entry in your Programs and Features part of your Control Panel, click change, and completely remove ALL the AMD components on your system, including the Catalyst Install Manager itself.
DO NOT REBOOT YET, no matter what the uninstaller says.
(If your screen suddenly outputs at a horrible resolution and looks like the 90s VGA monitor, skip the next bit, but to sure...follow the next step...)
Next, check Device Manager, and under the Display Adapters list make sure you're getting the Standard VGA Graphics Adapter entry there.
If you're not, (and Windows instead rolls back to some other AMD driver stored in it's repository), then install it yourself manually.
Head to the properties box of the AMD entry|Driver tab|Update driver|Browse my computer for driver software|Let me pick from a list of device drivers on my computer|Tick the Show compatible hardware box|select the Standard VGA Graphics Adapter entry.|Click Next and wait for the driver to install.
Your Desktop will look like the 90s but it's a temporary price to pay until we resolve your issue.
NOW, when you're asked to reboot, reboot, but to safe mode.
In safe mode, start up Driver Sweeper, and tick the checkboxes for NVIDIA - Display and AMD - Display (2 birds, 1 stone).. Analyse, then, Clean...
If asked to reboot, reboot, but this time back to normal mode...(reboot anyway if not asked)
All clear so far? Respond once before you start if you understood all i've just typed up..
When you're done with the above.... Respond again.. and we'll continue!
The next part will come after you've done all of the above..