How do I whitelist addresses blocked by Windows Defender Firewall?

  1. hello10's Avatar
    Posts : 204
    Windows 10 Home x64
       #1

    How do I whitelist addresses blocked by Windows Defender Firewall?


    My Windows 10 is blocking Internet access to certain Web sites. Every time this happens, a notification about "virus & threat protection connection blocked" notification pops up. If I disable WDFW, I could get to the destinations in question.

    I don't want to have to repeat the process every time, so I checked the WDFW outbound and inbound rules as well as the HOST file. The Web sites are not on their lists. From where or on what then is WDFW basing its action? From MS or 3rd-party sources? Most importantly, how do I whitelist the addresses (because I don't want to disable the FW)? I tried creating outbound rules in WDFW allowing access to the IP addresses, no go.
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  2. Bree's Avatar
    Posts : 18,617
    10 Home x64 (20H2) (10 Pro on 2nd pc)
       #2

    hello10 said:
    Every time this happens, a notification about "virus & threat protection connection blocked" notification pops up.
    Could be a number of things. Screenshot please, will help identify the cause.
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  3. hello10's Avatar
    Posts : 204
    Windows 10 Home x64
    Thread Starter
       #3

    How do I whitelist addresses blocked by Windows Defender Firewall?-capturen.jpg

    Just want to know how to whitelist a Web address WDFW is blocking, because it doesn't like me to visit it and not exactly because it's really harmful.
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  4. Bree's Avatar
    Posts : 18,617
    10 Home x64 (20H2) (10 Pro on 2nd pc)
       #4

    It's not the Firewall. You appear to have enabled Windows Defender Advanced Threat Protection (Windows Defender ATP).


    Enable Windows Defender Exploit Guard Network Protection in Windows 10 | Tutorials

    Conduct a demo to see how network protection works | Microsoft Docs

    To disable it, open Powershell (Admin). Enter the following cmdlet: Set-MpPreference -EnableNetworkProtection Disabled


    Windows Defender ATP is normally only enabled in Enterprise, though it can be enabled in other editions. Have you been playing?

    Windows 10 Enterprise E5 is the newest offer for customers who want to take advantage of everything in E3 with the addition of Windows Defender Advanced Threat Protection (Windows Defender ATP) a new service that helps enterprises detect, investigate, and respond to advanced attacks on their networks.
    Compare Windows 10 Editions | Tutorials
    Last edited by Bree; 15 Dec 2018 at 07:21.
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  5. hello10's Avatar
    Posts : 204
    Windows 10 Home x64
    Thread Starter
       #5

    Windows Defender ATP is normally only enabled in Enterprise, though it can be enabled in other editions. Have you been playing?

    I am using Home. Am not aware of deliberately enabling it.

    I downloaded and executed Disable_Windows_Defender_Network_Protection.reg, then restarted the computer. The blocking is gone. I wouldn't have thought it was caused by a so-called "Windows Defender Exploit Guard Network Protection." Thanks to you and Brink for the assistance and information.
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  6. Bree's Avatar
    Posts : 18,617
    10 Home x64 (20H2) (10 Pro on 2nd pc)
       #6

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  7. Posts : 1
    win10
       #7

    hello10 said:
    My Windows 10 is blocking Internet access to certain Web sites. Every time this happens, a notification about "virus & threat protection connection blocked" notification pops up. If I disable WDFW, I could get to the destinations in question.

    I don't want to have to repeat the process every time, so I checked the WDFW outbound and inbound rules as well as the HOST file. The Web sites are not on their lists. From where or on what then is WDFW basing its action? From MS or 3rd-party sources? Most importantly, how do I whitelist the addresses (because I don't want to disable the FW)? I tried creating outbound rules in WDFW allowing access to the IP addresses, no go.
    Try going to file you are trying to open and right clicking it first, then click "run as administrator" This should fix problem.
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