Stopping Windows Defender from blocking a program as a virus?


  1. Willabong
    Posts : 271
    Windows 10 pro x64
       New #1

    Stopping Windows Defender from blocking a program as a virus?


    I run a medical program on my PC which always gets blocked or removed as a trojan - The program in question is definitely NOT a virus and does not have a virus!
    I cannot find a way to allow this program to run without interference. I can restore the program via a repair but the next time I try to run it, it gets blocked again?
    I need to permanently stop Defender from removing/blocking this program but cannot find a way to do this?
    Any advice or help would be appreciated.

    Windows 10 pro fully updated 22h2 OS version 19045.4046.
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  3. fishingfool
    Posts : 114
    Windows 10 21H2 19044.2728
       New #2

    Hi Willabong

    Very simple. You just need to add an exclusion in defender. exclude the programs .exe: You can exclude entire folders if you want. If you look at defenders protection history, it states wich file it's mis-identifying

    How to Add Exclusions in Windows Defender on Windows 10
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  4. Ghot
    Posts : 23,281
    Win 10 Home ♦♦♦19045.4355 (x64) [22H2]
       New #3

    fishingfool said:
    Hi Willabong

    Very simple. You just need to add an exclusion in defender. exclude the programs .exe: You can exclude entire folders if you want.

    How to Add Exclusions in Windows Defender on Windows 10

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  6. RickC
    Posts : 1,767
    Windows 10 Pro (+ Windows 10 Home VMs for testing)
       New #4

    You can also use PowerShell's Add-MpPreference cmdlet.

    However, I've found that the easiest and quickest method by far is to use sordum.org's small, free, portable Defender Exclusion Tool.

    In particular, I like being able to add the Defender Exclusion Tool to my context menu so I can just select a folder or executable file, right-click on it and choose Add an exlusion.
    Stopping Windows Defender from blocking a program as a virus?-defender_exclusion_tool_context_menu.png

    Exclusions are now just a single right-click away...

    Hope this helps...
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  7. Willabong
    Posts : 271
    Windows 10 pro x64
    Thread Starter
       New #5

    Thank you all for your help! I did it the hard way without problems - But I also downloaded the Defender Exclusion Tool for the next time!
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