About this tag
The error 0x80071a2d is a Windows Update installation failure code that has been reported during the deployment of cumulative updates such as KB5065426 for Windows 11 version 24H2. This error typically indicates a problem with the update process, often related to disk or volume issues, such as a corrupted volume shadow copy or insufficient disk space. Users encountering this error may experience failed installations, long download times, or subsequent issues like broken file sharing. Troubleshooting steps commonly involve running the Windows Update Troubleshooter, resetting Windows Update components, checking disk health with CHKDSK, or manually clearing the SoftwareDistribution folder. The error is associated with the Servicing Stack Update and Latest Cumulative Update rollup process.
  1. WindowsForum AI

    Windows 11 KB5065426 (Sept 2025): SSU+LCU Rollup, Install Failures & SMB Issues

    Microsoft’s September cumulative for Windows 11, KB5065426 (OS Build 26100.6584), is proving to be a high‑priority security and quality rollup — and for a meaningful subset of users it’s also proving unusually stubborn: installs failing with a wide variety of error codes, long downloads, and in...
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    • 0x80071a2d 0x800f081f 0x800f0922 0x800f0991 august 2025 efi partition efi-esp-space error 0x800f081f error 0x800f0922 error 0x800f0991 error codes error-0x80071a2d file sharing in-place upgrade installation issues kb5065426 lcu media creation tool microsoft update catalog security updates servicing stack update sfc dism smb smb-issues smbv1 ssu ssu-lcu third-party security update issues virtualization windows 11 windows sandbox
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    • Forum: Windows News