John Kouraklis 94 Posted December 12, 2018 @David Hoyle No I did not clean the registry manually so this may be the reason. I am willing to try again so how do I identify the erroneous entries by 10.3? Just delete the keys below \20.0? I usually install apps using an undelete software but this time I totally forgot it so can't see what changes the installer does to my system Share this post Link to post
David Hoyle 68 Posted December 12, 2018 @John Kouraklis Export the following key from the registry and then delete it HKCU\Software\Embarcadero\BDS\20.0. Share this post Link to post