Please follow the steps to uninstall Nitro Pro in Windows 10 completely.
Solution 1: Please follow the guide here
https://maxuninstaller.com/index.html#uninstall-how-to-guides to go to the Apps and Features section in Windows.
Solution 2: If you just install Nitro Pro recently, you can find it at the Start menu: right-click the Start button at the left corner; at the top of the Recently added list, right click the Nitro Pro icon, and then click Uninstall.
- At the Uninstall or change a program window, select Nitro Pro and then click Uninstall.
- At the Programs and Features prompt, click Yes.
- Wait for the uninstall to be completed.