What is 'clean install' vs 'install' in AMD Graphics software?

Solution 1:

Install - regular install without removing old drivers/software.

Clean Install - use in a situation like an upgrade from previous version. The clean install will remove the old drivers first and then install the new ones. This is akin to running a program like DDU (Display Driver Uninstaller) so that there will be no driver conflicts with your new drivers. So then it can install your new drivers from a clean slate.