I struck an issue with the recent RadStudio webintaller upgrade from 10.2.2 to 10.2.3. It seems in the uninstall process that the RX 10.1.2 Raize components also got uninstalled along with the 10.2.2 components.
It was a real pain to try and fix as the GetIt installer was reporting that Raize was still installed and the uninstall process was failing. Really the uninstall process should try to remove the directories but also any potential registry entries regardless, rather than stopping if the directory is not found.
In the end I needed to remove the repository directory :-
\Public\MyDocuments\Embarcadero\Studio\18.0\CatalogRepository
Then most importantly the registry entries under Elements, in my case the Raize ones :-
HKEY_CURRENT_USER\SOFTWARE\Embarcadero\BDS\18.0\CatalogRepository\Elements
After that was done I was now able to install Raize again from GetIt.
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