When prompted, click Uninstall again to confirm that you want to remove the software. Even though the service files of separate apps rarely take up any significant space on your Mac individually, over time, all of them together start to clog your disk, making your system slow. Use the steps in the “How to avoid installing this malware” section above to remove the installer from the download location. Exit all browsers and other programs that use Flash. Portable version for all your personal Windows devices. Best mac uninstaller reddit The Pick: CleanMyMac X.