And second, IObit Uninstaller's 'Powerful Scan' option checks your Registry and hard drive for remnants that the program might have been left behind.

First, you launch the unwanted application's uninstaller and let it do its work. IObit Uninstaller is a multi-talented uninstall tool that can completely remove applications from your hard drive, with none of the usual Registry clutter and junk files that are often left behind.