Download the latest AMD Driver for your GPU card from here: https://www.amd.com/en/support/graphics/amd-radeon-r9-series/amd-radeon-r9-200-series/amd-radeon-r9-...
Then use this basic method to install the AMD driver to prevent conflicts:
Uninstall the current AMD Driver using DDU as per this method:
It could be due to a corrupted AMD Driver installation.
Download free program DDU (Display Driver Uninstaller). Run it in Safe mode with the internet disconnected.
You can also run it in Windows Desktop but then you would need to Reboot the computer for DDU to finish erasing all of the AMD Driver traces from your computer.
Once it finishes uninstalling the current AMD Driver in Safe mode and boots back to Windows Desktop, still with the Internet disconnected, delete the AMD Installation folder C:\AMD if it was created before.
Now install the full AMD Drive package you downloaded manually from AMD Download page. Not the express package. Run the package and if it installs correctly again delete C:\AMD folder and reconnect the internet.
This should prevent any conflict when installing the new version from the previous version.
By the way, C:\AMD is always created whenever you run the AMD Driver package
Afterwards check Device Manager and see if your GPU card is being recognized without any errors.
NOTE: Don't delete C:\AMD if your GPU card is not recognized in Device Manager. Use Device Manager to update the Display Adapter by updating the driver by directing it to C:\AMD installation folder. It should locate and install the basic driver and it related software if Windows recognizes your GPU card is installed.