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I was trying to uninstall the Thingworx 9.1 and reinstall Thingworx8.3 to prepare for a competition. After I uninstalled it and tried to reinstall version 8.3, I received an error message:
"You already have Thingworx Foundation Trial for H2. Uninstall it, and then you can use this installation tool to reinstall"
Then I go to Windows "Uninstall or change a program", but there is nothing there with a name like PTC or Thingworx.
What can I do now?
Hi.
Thank you very much for your reply. After I download CCleaner and use it to clear my Registry, I tried again to reinstall version8.3, it still failed with the same error message. Could you please help me again?
Regards.
Xiyan