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Windows Update download failure in restricted networks after January 2026 optional non-security updates

First reported
Last updated
1 unique sources, 1 articles

Summary

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Microsoft reports Windows Update failures in restricted network environments after installing January 2026 optional non-security preview updates, resulting in error code 0x80010002 and preventing download of subsequent updates via Windows Update settings. The issue stems from increased download timeout requirements for update operations and affects fully isolated, air-gapped systems and strictly firewalled networks. Systems may retrieve the February 2026 monthly security update but cannot download March 2026 or later updates through Windows Update settings.

Timeline

  1. 19.05.2026 14:22 1 articles · 23h ago

    Windows Update download failures in restricted networks after January 2026 updates

    Microsoft documents Windows Update failures in restricted network environments following the installation of January 2026 optional non-security preview updates. Affected systems display error 0x80010002 when attempting to download updates via Windows Update settings, with the issue traced to stricter download timeout requirements. Microsoft provides Known Issue Rollback (KIR) group policies for Windows 11 26H1, Windows 11 24H2, Windows 11 25H2, and Windows Server 2025 to resolve the problem.

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Information Snippets

  • Affected systems display error code 0x80010002 when attempting to download updates through Windows Update settings after installing January 2026 optional non-security preview updates.

    First reported: 19.05.2026 14:22
    1 source, 1 article
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  • The failure is limited to download operations via Windows Update settings and does not indicate device integrity or update installation capability issues.

    First reported: 19.05.2026 14:22
    1 source, 1 article
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  • The root cause is attributed to recent changes in download timeout requirements for starting download operations.

    First reported: 19.05.2026 14:22
    1 source, 1 article
    Show sources

  • Microsoft provides Known Issue Rollback (KIR) group policies to address the issue for Windows 11 26H1, Windows 11 24H2, Windows 11 25H2, and Windows Server 2025.

    First reported: 19.05.2026 14:22
    1 source, 1 article
    Show sources

  • Administrators must install and configure the appropriate KIR group policy and restart devices to resolve the issue.

    First reported: 19.05.2026 14:22
    1 source, 1 article
    Show sources