Check for the latest virus and spyware security intelligence on startup

Policy ID

SignatureUpdate_UpdateOnStartup

Scope

Computer Configuration

Supported on

At least Windows Server 2012, Windows 8 or Windows RT

Source

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

Category

Windows Components › Microsoft Defender Antivirus › Security Intelligence Updates

Description

Registry

Other policies in the same category

• Allow notifications to disable security intelligence based reports to Microsoft MAPS
• Allow real-time security intelligence updates based on reports to Microsoft MAPS
• Allow security intelligence updates from Microsoft Update
• Allow security intelligence updates when running on battery power
• Allows Microsoft Defender Antivirus to update and communicate over a metered connection.
• Configure security intelligence updates according to the scheduler for VDI clients.
• Define file shares for downloading security intelligence updates
• Define security intelligence location for VDI clients.
• Define the number of days after which a catch-up security intelligence update is required
• Define the number of days before spyware security intelligence is considered out of date

View all policies in this category (18)