You might not realize it but when you remove a program from your computer most times there is still small pieces left behind. Pieces that you’d never know about but could cause troubles down the road. Most of these pieces of files get left behind in your windows registry files. A network of data that is added and removed from with every action you do on your PC. In order to remove the remnants of old software you’re going to need a registry cleaner. The best registry cleaner will offer a free scan utility, and an auto repair feature. This makes it easy for even beginners to handle this type of PC maintenance on their own.