[Guy Van bogart]

Resurrecting this thread since it doesn’t quite have a solution and I’ve found one (for Windows, at least).

In order to completely remove all traces of old licenses, you must uninstall the suite, then find and delete all the “.rgs” files before re-installing. The “.rgs” files are not deleted during the uninstall process and are what makes your old serials seemingly resurect themselves every time you run the installer or change the serial in the “register” menu within the plugin in After Effects.

In Windows, you should find the files to delete in the following folder:

C:\ProgramData\RedGiant\Licenses

*Note* you will likely have to change your folder preferences in Windows to show hidden items and/or system folders or you won’t see the “ProgramData” folder.

Simply delete the “.rgs” files you see and re-install your Red Giant software. For good measure, you can safely delete both the “RedGiant” and “Red Giant” folders located in the “ProgramData” folder before re-installing, though I doubt it’s necessary.