1. Stop the Service (instructions for Windows 10; others differ)
Right-click on the Server’s Start command and choose Computer Management.
In the list that appears, double-click Services and Applications.
In the list that appears, scroll to ExtendSimServer.
Stop the ExtendSimLicServer service (right-click select Stop).
Close the Computer Management window.
2. Remove the Service
Open Command Prompt as Administrator (Enter CMD in the Search box and simultaneously click Ctrl+Shift+Enter.
Click Yes in the User Account Control window to enable Windows Command Processor.
At the command line enter SC delete ExtendSimLicServer and press the Enter key.
If successful, the Service will be removed and you can close the window.
3. Uninstall ExtendSim Floating License Server v10 using Windows Settings > Apps > Apps and features, then delete the folder ExtendSimFloatingLicenseServer (located by default at the root of the C drive).
Note: Before reinstalling using a newer ExtendSim Server License Manager, you must first uninstall the previous License Manager as described above.