Invalid Product ID at Start

Run EASE as an Administrator by right-clicking on its icon. If you do not get the error, then close EASE and run it normally.

Otherwise, select Remove Licence from the EASE Guard's Licencing by File on the Terminate tab and exit EASEGuard. Run EASE a second time, this time by starting it normally. If you still get the error, then select Remove Licence from the EASE Guard's Licencing by File on the Terminate tab. Then restart the EASE Guard program and select Download Licence.