- open CMD
 - navigate to: C:\Program Files (x86)\CodeMeter\Runtime\bin
 - take the Dongle ID from the Licence Manager:
 - 
 
- after that, execute the following string
 - cmu32.exe --delete-cmact-license --serial <DongleID of the Software-Dongle>
 - eg: cmu32.exe --delete-cmact-license --serial 130-1488480077
 
At the end of the process, a confirmation is displayed that the dongle has been successfully deleted.