Download Your Uninstaller click here:
if you can't uninstall WinRAR on Windows 10, we would recommend you use Your Uninstaller. Your Uninstaller is a convenient option for thoroughly removing programs from your computer, including those that the built-in Windows uninstaller can't.
1. Close WinRAR
2. Download and install Your Uninstaller on your PC.
3. Launch Your Uninstaller.
4. Select WinRAR and then click Uninstall button.
VIDEO TUTORIAL: