These tools cleanly uninstall programs that are no longer required and fight fat chaos programs that are scattered all over the hard drive.
If you want to delete programs completely and without traces, use the free IObit Uninstaller.
When they are installed, programs – be they office tools or games – like to write themselves in many different folders, create a shortcut here and store a few saved files there. The overview is quickly lost and forgotten folders remain on the hard disk when deleting. Not only do they steal valuable storage space there, the data salad also makes the search for individual files unnecessarily difficult. Uninstallers are programs (often free of charge) that have waged war against such chaos programs.
When cleaning up, they proceed differently: Some analyze the complete database and track down all program parts wherever possible – no matter where they are. The others take snapshots of the system before a program is installed. If the user deletes a program, the uninstallers compare before and after and thus filter out all program components. Many developers also advertise that their uninstaller is not only more thorough than the Windows uninstaller, but also faster. The Revo Uninstaller, for example, should also perform uninstallations in which Windows aborts with an error message. The developer calls this “Forced Uninstall”.