Bruno,
I have uninstalled Rad Studio 11.3 already but did not run the uninstallers for my tms component sets. Now when I try to install the components in Rad Studio 12, it tells me to uninstall the previous versions. When I run the uninstallers, they just sit there and never show progress. 0% CPU and no disk activity. Is there a way to run a clean-up or clear the previous version out so the installers will run on the new Rad studio? The TMS Business set did fine in this situation. But VCL and FMX will not uninstall now.