Go to the Windows Menu and search for Control Panel:
Look for either Programs: “Uninstall a program”
or Programs and Features
Once either option is selected from Step 2, find the 3CXPhone for Windows application, select it and click Uninstall:
Confirm the uninstall by clicking Yes:
If you get the message below just click OK. The 3CXPhone for Windows app will disappear from the list.
Restart your computer.