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, use the Windows Settings > Apps and Features to uninstall ExtendSim 10.

3. Then delete the two folders: Documents/ExtendSim and Program Files/ExtendSim.