When you do not use more than one software, you can uninstall it from your computer. Firstly, you free up disk space, and on the other hand, this will allow you to reduce 1 little your computer in the case of software that runs in the background and who would therefore use your computer's resources.
To uninstall a software, Windows has an add/remove programs function, available in the control panel. If it is practical, this function is however far from being completely effective.
Indeed, it happens too often that after uninstalling a software, there are traces on your computer. This may be the keys and values in the Windows registry as well as the folders and files on your hard disk. Some of these registry files and keys are required for your computer to "remember" that it has one day installed these programs, and are usually configuring the program that you just uninstalled.
With the free software Revo Uninstaller, you can completely uninstall a software as well as all its traces on your computer, that is in the registry or on your hard disk.
Revo Uninstaller will enable you to keep a clean system. This will also allow you to reinstall software from zero on your computer, regardless of residues which were and which were deleted.
Revo Uninstaller also has a Hunter mode to locate and uninstall stubborn software that would not appear in the list of installed software. It also includes various system tools for e.g. permanently delete files safely, search old files…
Revo Uninstaller is proving so be a replacement of choice for the Add/Remove Windows Programs Wizard which is fairly limited.
Be careful at what you delete! Revo Uninstaller may offer you to delete registry keys and files that have nothing to do with the program you want to remove!!! For registry keys, check only the last items written in bold if they have a link to the software (extension that the program created, initial program, program name,…); Same for files. If in doubt, better to leave a few files (especially concerning the registry keys!) that fuck up your computer… ;-)
Available in French for free: link (there is also a paid professional version)