Indeed, the Adobe Flash Player comes bundled with McAfee Security if you check that option. I would like to recommend you use Revo Uninstaller. Even if it can't uninstall the application normally, it will force it to uninstall by wiping out all traces of its presence from the system.
Remove all the installed applications with Revo, and then visit Adobe page and download Flash Player, but make sure to uncheck the option to install McAfee.