Performance analyzer for Microsoft Defender Antivirus — by Microsoft Learn

advancedpageLink only (©)Windows 11Windows 10

How to record and analyse what Microsoft Defender Antivirus is scanning with New-MpPerformanceRecording and Get-MpPerformanceReport. This is the measured alternative to switching protection off when something feels slow.

Quick steps

  1. New-MpPerformanceRecording -RecordTo C:\Temp\defender.etl
  2. Get-MpPerformanceReport -Path C:\Temp\defender.etl -TopFiles 10

Paraphrased from the source. Menus can differ by version, so check the original for full details.

Read the full article on learn.microsoft.com

Source: Performance analyzer for Microsoft Defender Antivirus by Microsoft Learn. Licence: Link only (©).

Source reviewed
2026-11-02
Link checked
2026-11-02
Tested hands-on
Not by Oddbyte.Me

defenderantivirusperformance

More in Further Reading & Power Tools