If the Registry Editor is disabled using Group Policy Editor (GPE), you can enable it in Group Policy Editor if you have permission to do so. In GPE, go to User Configuration > Administrative Templates > System and set “Prevent access to registry editing tools” to “Not configured.”
Disabling the Registry Editor (Regedit) using Group Policy Editor (GPE) in MS Windows OS
You can disable Registry Editor (Regedit) in Group Policy Editor if you have permission to do so. In GPE, go to User Configuration > Administrative Templates > System and set “Prevent access to registry editing Read more