If you don’t clean up the registry, someone who can access your device may obtain your personal information even if you’ve removed all the related files/folders. Some data related to an uninstalled program may still be saved in the registry, such as sign-in information, associated email address, and related private data. So, you need to clean up the registry to remove all the leftover. If you have installed any malicious applications on your computer and then uninstalled it, there are still some remnants in the registry that may also cause some critical errors and affect your computer performance. To remove potential threats from malware.If there are too many old entries accumulated in the registry, you might receive various error messages while operating with your computer and your device will obviously slow down. To improve the performance of your computer.Generally speaking, you might want to clean up your registry for the following reasons: So, you have to clean up registry by yourself. Although your Windows can always keep the registry up to date, it cannot clean it up automatically.

And after you uninstall a program, its relevant registry will become old and useless. Why do You Need to Clean up Registry?Įvery time you install a new application, new registry entries will come up in the database. To get further information about the registry, you can check this article. As for the location of a key, we often reference it with a syntax that is similar to the path name in Windows. The value is contained in its key, and a key may contain values and subkeys. The relationship between keys and values is similar to that of folders and files. The registry has two basic elements: Keys and values. As a typical example, the configuration files of portable applications are usually held in their executables. But you should know that not all the Windows applications use the registry for configurations. That is to say, Windows will refer to the registry when you are trying to open a program or change hardware. It contains information, settings, options, and other necessary values for programs and hardware installed on Microsoft Windows. The registry, or Windows Registry, is a database that is used to store low-level settings for Windows operating system and most applications like device drivers, services, and so on. Bonus Tip: Back up Your Computer Before Registry Clean.Top 10 Free Registry Cleaner for Windows 10.

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