I feel as though I've tried everything, from complete uninstallation, wiping, restoring old drivers and so on. Every time I get the same message:
Radeon Software (18.104.22.168) has not been installed. Error 1603 - A general error has occurred during the installation of the AMD software package.
When I go to uninstall or retry the installation the AMD client says that the drivers are 'partially installed'.
This is really annoying. Using two monitors is extremely problematic now as for some reason my mouse keeps lagging.
I'm using a 21" 4K iMac (2017) running the latest version of Windows 10 on Bootcamp.