When you want to remove a program, you probably reach for Windows’ built-in ‘Add or remove programs’ option. It’s okay for removing the odd program here and there, but all too often you’ll be presented with a message telling you that some components couldn’t be removed, or the uninstall has failed.That’s why you need a dedicated third-party uninstaller – and some of the best tools around are available completely free. These uninstallers will quickly scan your system for all installed programs, and let you select several at once for removal. Once they’ve been purged, the software will then perform another scan to track down and wipe out temporary files and old registry entries, freeing up valuable space and ensuring you don’t run into problems when installing a newer version of the same software later on.The best free uninstallers also provide a handy way to manage browser extensions and plugins, and remove any that you don’t use. You’ll also be able to empty your recycle bin with a single click, and delete your browser history.If you like to experiment with new software, or just want to keep your PC tidy, a free uninstaller is essential. Here’s our pick of the best.