I've elected not to renew DS Pro on a Windows 10 workstation and would like to occasionally use the free version, yet that option seems to be gone.

I've uninstalled it via the installer and also tried via the Windows Apps settings
After uninstalling, I've removed Dassault/DraftSight keys from the registry editor per "https://r1132100503382-eu1-3dswym.3dexperience.3ds.com/#community:51/post:6659"
When re-installing, I request the Free version and it reports "DraftSight 2018 SP2 has been successfully installed."
When I try to run DS, it just tells me "DraftSight Professional expired..." and makes me run the activation wizard with no choice but to renew.

Any tips on how to go back to the free version?