The Patch notes for 24.1 mentions a new version of RegDelete.
It’s available at:
and includes the Dazzle Driver and PS24 in its dropdown list, as well as all the older versions of Studio. It’s recommended that you use this program if you are having any issues with PS installation. It should remove all entries in the Registries for the selected options, allowing them to be correctly set during installation.
The PS24 option removes the pixie data that holds your serial number, so be sure that you have that to hand before you set about uninstalling and re-installing – it can be found in the Help Menu (?).