How to Turn On or Off Microsoft Defender Antivirus in Windows 10  

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  1. Brink's Avatar
    Posts : 58,490
    64-bit Windows 11 Pro for Workstations
    Thread Starter

    tobwen said:
    Ok, But as far as I can see specifying an exclusion for e.g. whole partition D:\ mean that none of the files are scanned.
    Thats bad.

    I want to let Defender scan each file excatly ONCE. If Defender thinks its evil a popup should appear asking me for action.
    This popup dialog should contain a button similar to "exclude (only) this file from further scan".
    AND - as already said - the file should NOT be deleted if user click on exclude.

    So is there something like an exclude on first detection?
    Usually, if a file is flagged by Microsoft Defender, it gets put into the Quarantine folder (see in "Protection history") for you to review to either unblock, exclude, or remove.
      My Computers

  2. Posts : 21

    Brink said:
    You could add exclusions to Microsoft Defender if wanted.

    Add or Remove Microsoft Defender Antivirus Exclusions in Windows 10
    Yes but @Chrysalis doesn't want to exclude anything from scanning past or future, instead when a virus is suspected/detected to warn/log not delete/quarantine straightaway. I think I made it pretty clean what I mean.
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  3. Matthew Wai's Avatar
    Posts : 6,022
    Windows 10 Home 20H2

    Paul Black said:
    Stop Windows Defender - NOTE: This is temporary, it will revert to Started on the NEXT Restart or Boot:
    sc stop WinDefend
    Microsoft Defender sees the command as a trojan and will block it immediately.
    How to Turn On or Off Microsoft Defender Antivirus in Windows 10-1.-command-blocked.jpg

    How to Turn On or Off Microsoft Defender Antivirus in Windows 10-2.-command-blocked.jpg
      My Computer

  4. Posts : 36
    Windows 7/8.1/10

    For Windows 10 only. Try this utility called Defender Control. It works for Windows 10, not for Windows 7 (In case you have a legacy PC that can't be upgraded without significant performance issues),
      My Computers

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