1. First, return the license if it has been temporarily checked out from the network:
    • Connect the client computer to the server that hosts the License Manager.
    • Use the command Help > Floating License > Check In a Floating License. This restores the number of concurrent users the server allows.
  2. Then, uninstall ExtendSim using Windows Settings > Apps and Features.
  3. Finally, delete the two folders:
    • Documents\ExtendSim
    • Program Files\ExtendSim