Smartscreen blocked by firewall - how to add rule to allow?


  1. xanderax
    Posts : 12
    Win10 pro
       New #1

    Smartscreen blocked by firewall - how to add rule to allow?


    Hello I have my firewall configured to block outbound connections that don't meet a rule.
    Although there are the default rules for Smartscreen still enabled, smartscreen still gives it's error message "Windows smartscreen can't be reached right now". If I enable all outbound connections it works, but I don't want to do that.

    What rule do I need to add to allow it to work?
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  3. xanderax
    Posts : 12
    Win10 pro
    Thread Starter
       New #2

    Update - I answered my own question.
    Using the event log to capture which connections were being blocked, I found that the 4 "Smartscreen" rules seem to be for apps that Smartscreen has decided are OK and it created those rule, and not for itself. So Smartscreen isn't smart enough to tell the firewall it itself is OK. =) I added a rule to unblock:

    %SystemRoot%\System32\smartscreen.exe

    and now it works.

    Info on how to set up event log to see what is being blocked here...
    Windows Update and firewall - Windows 10 Forums
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  4. simrick
    Posts : 16,325
    W10Prox64
       New #3

    Thanks for posting your solution to help others in the future!
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  6. Dingy
    Posts : 1
    Windows 10
       New #4

    @xanderax,
    Thank you for you post. This helpt me a lot. Thanks
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