Hide all notifications

Supported on: At least Windows Server 2016, Windows 10 Version 1709

Registry

HKLM SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications

Value name: DisableNotifications

Enabled: DisableNotifications = 1

Disabled: DisableNotifications = 0

Description

Hide notifications from Windows Security. Enabled: Local users will not see notifications from Windows Security. Disabled: Local users can see notifications from Windows Security. Not configured: Same as Disabled.