1. Launch TuneupMyMac and click on Help > Uninstall TuneupMyMac option.
2. A dialog box will appear asking your confirmation. Click on 'Yes' button to uninstall TuneupMyMac.
3. For security reasons, you will be asked to enter your Mac user password. Enter your Mac user password and click on the OK button.
This will uninstall TuneupMyMac from your Mac.