A registry cleaner is a piece of software designed for the operating systems from Microsoft. Its main purpose is to erase duplicate entries or any unwanted entries from the Windows Registry.

Nevertheless, some security experts hold completely different opinion on the usefulness of registry cleaners and have discarded their benefits to remove redundant or unwanted items.

The utility of registry cleaners becomes even more controversial because some security experts associate them with malware and scareware propagation.

Registry Cleaners help in the protection of a system by successfully cleaning the Windows Registry. They clean all the unwanted and useless configuration data from the system and enhance the efficiency of a slow computer.

Configuration data could be found in several forms that replete the Windows Registry. Settings for malware installation and propagation, unwanted information and information of uninstalled software are generally categorized as configuration data.

A Registry Cleaner scans the Windows Registry to detect unnecessary values so that they could be repaired or deposed.

Benefits:

The Registry Cleaner Software makes computer efficient and improves its performance by deleting all the unwanted information.

It is not just sheer size and complex structure of Registry database that make manual cleaning of debris and invalid entries difficult but also missing files references and broken links make the task almost unfeasible. However, Registry Cleaner Software is competent enough to perform the cleaning process automatically and flawless.

Computer users could avail many benefits of invalid Registry key correction.

Registry Cleaner Software functions proficiently until the application moves to .NET Framework platform, which does not need registry for application settings.

Computer users can now access to advanced Registry Cleaners that inculcate backup and restore facilities to allow users to revert undesired modifications.

Computer users, who usually add or remove applications, should have Registry Cleaner installed in their systems. But security experts believe that virtual machines are perfect systems for Registry Cleaner installation because they need reliable reverting means to go back to the best known testing scenario.

Although Registry Cleaners keep the Windows Registry clean off unwanted material, some security experts disagree with this claim and questioned their benefits.