The Windows registry is a hierarchical database that stores configuration settings for the operating system and installed software. Over time, the registry can become large and cluttered, which can lead to performance problems. Checking the registry size can help you determine if it needs to be cleaned or repaired.
There are several ways to check the registry size. One way is to use the Registry Editor. To do this, open the Registry Editor by pressing Windows Key + R and typing “regedit”. Then, click on the “Computer” key in the left-hand pane. The registry size will be displayed in the bottom-right corner of the window.