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Windows 11 preview update KB5079391 installation failures prompt rollback

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1 unique sources, 1 articles

Summary

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Microsoft has paused the rollout of Windows 11 non-security preview update KB5079391 (OS build 26100.2484) due to widespread installation failures marked by error code 0x80073712, affecting systems running Windows 11 24H2 and 25H2. The update included 29 changes such as Smart App Control improvements, Display enhancements, Windows Hello Fingerprint reliability fixes, and Windows Recovery Environment (Windows RE) stability updates for x64 apps on ARM64 devices. Installation errors manifest with the message: "Some update files are missing or have problems. We'll try to download the update again later. Error code: (0x80073712)."

Timeline

  1. 30.03.2026 12:38 1 articles · 2h ago

    Microsoft pauses KB5079391 rollout due to 0x80073712 installation failures

    Microsoft has temporarily stopped the distribution of Windows 11 preview update KB5079391 across 24H2 and 25H2 systems after users reported widespread installation failures with error code 0x80073712. The update, which included Smart App Control improvements, display and Windows Hello enhancements, and Windows RE stability fixes for x64-on-ARM64 scenarios, will not be offered through Windows Update until the issue is resolved. A fix is expected before the April 14, 2026 Patch Tuesday cumulative updates to allow thorough testing and prevent recurrence.

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Information Snippets

  • KB5079391 targets Windows 11 24H2 and 25H2 systems and includes 29 changes focused on Smart App Control, display improvements, Windows Hello Fingerprint reliability, and Windows RE stability for x64 applications on ARM64 devices.

    First reported: 30.03.2026 12:38
    1 source, 1 article
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  • Affected devices display error 0x80073712 during installation, indicating missing or corrupted update files, and prompting Microsoft to pause the update’s rollout.

    First reported: 30.03.2026 12:38
    1 source, 1 article
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  • Microsoft has temporarily limited availability of KB5079391 via Windows Update to prevent further impact while investigating the root cause.

    First reported: 30.03.2026 12:38
    1 source, 1 article
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  • The rollout pause aims to allow resolution before the April 14, 2026 Patch Tuesday cumulative updates, ensuring tested deployment of new features and fixes.

    First reported: 30.03.2026 12:38
    1 source, 1 article
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  • This follows a prior emergency update issued one week earlier to resolve sign-in failures with Microsoft accounts across Teams, Edge, Microsoft 365 Copilot, and OneDrive caused by March 2026 Windows updates.

    First reported: 30.03.2026 12:38
    1 source, 1 article
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  • Microsoft also released two out-of-band updates for Windows 11 Enterprise hotpatch-enabled devices in March 2026 to address a Bluetooth device visibility bug and security flaws in the Routing and Remote Access Service (RRAS) management tool.

    First reported: 30.03.2026 12:38
    1 source, 1 article
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