Good Morning Rickf77
You should be able to remove the few remaining bits after you've run the uninstaller, so long as you do not touch anything in the TS12 folder.
If you are unsure, try moving the folders/files to another location (make a note of their original locations), and test TS12. If it still works, then they can be deleted. However, I can't see it being an issue unless you are looking at folders in the TS12 folder.
Regards