Microsoft Defender Antivirus Update

Get-MpComputerStatus | Select-Object AntivirusSignatureVersion, AMProductVersion, AMServiceVersion

Formerly known as "Definition Updates," Security Intelligence is the database of known threats, hashes, and behavioral patterns used to detect malicious activity. microsoft defender antivirus update

Scroll down to and click Protection updates . AMServiceVersion Formerly known as "Definition Updates

These contain the latest "signatures" or definitions of malware and viruses. They are released several times a day. microsoft defender antivirus update

Open by searching for it in the Start menu or clicking the shield icon in the system tray. Select Virus & threat protection from the sidebar.