Windows · PowerShell

Check Microsoft Defender Status

Shows whether real-time protection is on, the signature version and the signature age. Warns when signatures are older than 3 days.

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Script Library

Live data

28scripts

Windows18
macOS5
Linux5

By category

Network3
Disk and storage4
Inventory4
Security9
Updates4
Maintenance4

Last reviewed: November 6, 2026

CODE

Script

check-defender-status-windows.ps1

$status = Get-MpComputerStatus
$status | Select-Object AMServiceEnabled, RealTimeProtectionEnabled, AntivirusSignatureVersion, AntivirusSignatureAge, QuickScanAge | Format-List
if (-not $status.RealTimeProtectionEnabled) { Write-Output 'Real-time protection is OFF.'; exit 1 }
if ($status.AntivirusSignatureAge -gt 3) { Write-Output 'Signatures are older than 3 days.'; exit 1 }

Caution: Running a script is a sensitive action. Do not run code you have not read. A non-zero exit code shows as a failure in Moftgate output.

HOW IT WORKS

Run it on every device with Moftgate

01
Add the script
In the Moftgate console, open Scripts > New script and paste the code.
02
Select the OS
Select Windows as the target operating system.
03
Test it
Run it on one test device first and read the output.
04
Roll out
Send it to all targets by group, profile or tag. Each device result is recorded separately.