Registry cleaners come with all kinds of promises – they'll optimize your PC, give it a speed boost, eliminate errors and prevent crashes – but that's not the full picture. The Windows registry is a database containing almost all your PC’s hardware and software settings. When you uninstall a program, its registry keys should be removed too, but this doesn’t always happen. . If you own a Windows PC, you'll be used to performing some basic maintenance tasks to keep it running smoothly and prevent problems with applications or files. Most of us regularly update our virus definitions, empty the Recycle Bin and so on. When it comes to PC maintenance, a Registry Cleaner should also be part of your toolkit. Its purpose is to keep your Windows Registry tidy, efficient and help applications to run without a hitch. Leave a reply with more info.