4 ms·

Windows Defender does background scanning unless you disable it (and Windows will show a nice warning icon in the tray if you do).

• basch 7y ago
  and if you disable it it turns itself back on, it even says "i wont stay off for long"
  • xirdstl 7y ago
    You can disable it permanently, but I believe it requires registry editing to do so. I run Win 10 with real-time protection always turned off.
    • striking 7y ago
      Not sure about the registry, but it's definitely something you can disable in Group Policy (though Group Policy is only available on Windows 10 editions greater than Home).
      • xirdstl 7y ago
        I think you're right and I misremembered how I did it, since it had been so long. Thanks for the correction!