Disables the Windows registry editor Regedit.exe. If you enable this policy setting and the user tries to start Regedit.exe, ...

Disables the Windows registry editor Regedit.exe.

If you enable this policy setting and the user tries to start Regedit.exe, a message appears explaining that a policy setting prevents the action.

If you disable this policy setting or do not configure it, users can run Regedit.exe normally.

To prevent users from using other administrative tools, use the "Run only specified Windows applications" policy setting.