AMD Radeon 1603 installer error.
This thing has been the bane of my life for the last week or so.
Loads of so called "fixes" did not help, DDU, reinstalling C++ redistrutables etc, no solution.
This post on the AMD forums suggests looking in the event viewer:
I look in the event viewer (Windows logs\Application) and see this:
Product: AMD Problem Report Wizard -- Error 1327.Invalid Drive: Z:\
Z: was a network drive I did have but not sure how the installer was latching on to it.
So, I went to the registry as per this support link from the Autodesk support site:
The 1327 error is a Windows installer error it would seem.
So, I check the registry:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
And sure enough, there are references to the orphaned Z: although no idea why the Windows installer / Radeon installer is referencing them as they have nothing to do with any install/system folder.
It was a nondescript string value, just alpha numeric and did not reference anything specific and the value data was just a path, example below:
Any hoo, remove all references to the orphaned drive and rebooted the computer and reinstalled without any problem.
The AMD support article for this error:
Does not touch on this as being a likely cause but it was in this instance and has been for others I assume but I was unable to find a specific reference to it.
Hope this helps others in the future and saves them some hair.