Disable Registry Editor

Almost all programs can be changed in Registry Editor, so for the sake of computer security, you can prevent other people from entering the computer to modify the file, you may in Group Policy for the Registry Editor to prohibit access settings.

On the left side of the local Group Policy Editor, expand Local Computer configuration → user Configuration → administrative templates → system, and on the right, double-click the Organize Access Registry Editing Tool option.

In the Open dialog box, select Enabled, and after you apply the settings, a disabled dialog box appears when you try to open Registry Editor.