__top__ Download Definition Update For Windows Defender Kb915597 Definition 155 11190 Better ●

Run the downloaded mpam-fe.exe as Administrator. You will see a popup indicating the update is being installed. This takes less than 10 seconds.

Alternatively, schedule a weekly PowerShell script to run as a scheduled task: Run the downloaded mpam-fe

This update is categorized as "Important" because it provides the signatures Run the downloaded mpam-fe