Hi guys. Tiffany from TuneUp here. Sorry to hear you would like to uninstall.
For Mac users, the Mac uninstaller is located here:
Home Folder > Library > Application Support > TuneUp_Support > TuneUp_Uninstaller
Click "Ok" and then enter your system password when prompted.
You will be notified when TuneUp has been successfully uninstalled.
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For PC users, please manually uninstall TuneUp from the Windows Control Panel.
Please let me know if you have any further questions. Hope that helps!