You use a registry cleaner because the windows registry computer is a clearinghouse used by windows to maintain and manage all data files necessary to configure your system for multiple users, run applications, and operate hardware devices. The information in the computer registry is constantly referenced during operation.
This could include the applications and drivers currently in use, user profiles, the types of documents each user creates, property sheet settings for folders, application icons, hardware drivers installed on the PC, and ports currently in use. Used properly, a good quality cleaner registry can protect your computer against catastrophic events. You can find out the best way to clean pc via https://www.bleachbit.org.
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The computer registry is a vital part of your windows operating system, regardless of the version you are running. If it is damaged, your system may be corrupted resulting in a crash the entire system. To prevent damage to the registry, it is very important for you to be aware of what you install on your system.
Your registry is active every time you use your pc and perhaps running applications that you're not aware that you still, or worse malware that you knew was not installed. In addition to being selective about installing software, a good quality cleaner registry will go a long way towards protecting your system and repairing the computer registry if anything is through.