Windows registry is a file that is used to store information and settings for all the hardware, operating system and other software, user accounts, system settings, and preferences. Whenever you start the computer the system reads the values from the registry entries to initialize the components that are essential for system to run smoothly. Whenever any change is made to the system settings or a program is installed or uninstalled, a new entry is generated in the registry. In this way, with continuous use the registry gets piled up with data most which is not used by the system. Especially the outdated entries and traces of incomplete software uninstallation remain in the registry without any use making the registry size bigger. These unimportant registry entries make the system slower as well as prone to frequent system errors. With a registry cleaner you can clean up the registry and fix the registry quiet easily.

To clean registry up all you need is to do is download a free registry cleaner. Install the software and scan the registry with it and it automatically repair the errors in the registry keeping the valid entries without changing them a bit. A registry cleaner removes outdated entries, traces of the incomplete installation, empty spaces and embedded keys that are otherwise untraceable and used by the malware programs. So, while keeping your registry free from any errors the registry cleaner will give you protection from potential threats caused by the malicious programs as well.

Most of the advanced registry cleaner tools that are available these days come with the ‘schedule and forget feature’. With them you can schedule the scanning process that will automatically scan the registry and repair the errors without you personally taking the initiative to scan the registry. Registry cleaners also back up the registry file before they clean the registry of unwanted entries. This feature gives you an added protection against deletion of valid entries by mistake. With a back up at your hard disk, you can always restore the registry file in case you encounter any problem after the registry cleaning.