Prevent changing screen saver: registry value NoDispScrSavPageUserHKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System

Policy ID

CPL_Personalization_NoScreenSaverUI

Scope

User Configuration

Supported on

At least Windows 2000

Source

Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)

Category

Control Panel › Personalization

Registry