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.What’s more, you will learn about how to back up computer using MiniTool Partition Wizard to avoid data loss during registry clean. Note down these programs or take a screenshot because you will have to reinstall them again.What is the registry? Why do I need to clean up Windows Registry? What are the best registry cleaners? You can find the answers in this article. Select the most recent restore point from the list and then click on the Scan for affected programs button.You will see a list of all the available restore points created by program installations or Windows updates.System Restore utility will launch on your system.Type rstrui into the text box and press the Enter key. Press Win + R to launch the Run command box.Repeat the following steps to perform a system restore: If none of the above methods work, you can revert to a last known good system configuration using a restore point. The System Restore tool saves all Windows system files and drivers including the registry contents. If it finds any traces of malware, manually remove them from your system. Windows Security will execute a deep scan of all the files on your disk.Select the Full Scan radio button and then click on the Scan Now button.Navigate to Virus and threat protection > Scan options.Click on the relevant search result to launch the app.Open the Start menu and search Windows Security.Here’s how to do a complete system scan using Windows Defender:

You must perform a thorough scan of your Windows computer using Windows defender. Malware can create and modify the registry items, and can even break or corrupt existing registry entries.

Broken registry