Smart app control has blocked part of this app because you can't verify publisher

Paul Carr 0 Reputation points
2026-11-11T18:43:38.6266667+00:00

It's your app. It's the Bing wallpaper app. Downloaded directly from your website at the same time as downloading the MS rewards app. You are the publisher. WTF?

Windows for home | Windows 11 | Security and privacy
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  1. Emma1-N 14,925 Reputation points Microsoft External Staff Moderator
    2026-11-12T00:06:48.2666667+00:00

    Welcome Paul Carr,

    Thank you for reaching out to Microsoft Q&A.

    I understand your frustration, especially since you downloaded Bing Wallpaper directly from Microsoft's website.

    Smart App Control checks an application's reputation and digital signature before allowing it to run. Sometimes, an application may be blocked if its signature cannot be verified.

    Please try the following:

    1. Update Windows Security
    • Open Settings > Windows Update
    • Select Check for updates
    • Install any available updates and restart your PC.
    1. Reinstall Bing Wallpaper
    • Open Settings > Apps > Installed apps
    • Find Bing Wallpaper and select Uninstall
    • Restart your computer.
    • Reinstall Bing Wallpaper from the official Microsoft Store.
    1. Check whether the warning persists

    Launch Bing Wallpaper again and check whether Smart App Control still displays the warning.

    If the issue continues, could you confirm whether the warning appears during installation or when opening Bing Wallpaper?

    Looking forward to your update.

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