There are occasions when an uninstaller files for one reason or another, and this could mean that software you do not want is left untouched on your hard drive, or that remnants of it are left behind. In most cases you will find that this gets rid of the program in question in its entirety, but this is not necessarily the case. If you have decided that you no longer want to use a particular program, you may well head to the Control Panel or the Start menu and run through the installer.