2026-02 Cumulative Update for Windows 11 Version 24H2 (Windows 11 Pro) Keeps Failing

Hanwhaus MIS 0 Reputation points
2026-03-10T21:30:01.75+00:00

2026-02 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5077181) (26100.7840)

Some update files are missing or have problems. We'll try to download the update again later. Error code: (0x80073712)

Windows for home | Windows 11 | Windows update
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  1. Desmond van Heerden 0 Reputation points
    2026-10-12T07:30:09.29+00:00

    I had a similar problem on a Windows 11 Pro N 25H2 PC that had been upgraded in place from Windows 10 22H2. Every cumulative update failed with 0x800f0993 / 0x80073712 for three months. RestoreHealth didn't help, and an ISO repair install was blocked. Here's what fixed it without a reinstall.

    Check whether yours has the same cause: open C:\Windows\Logs\CBS\CBS.log and search for Hydration failed for component. If you see many of these, Windows is missing the original 24H2 base files that updates are built on. This is the issue Microsoft acknowledged for PCs upgraded from Windows 10 or 23H2.

    What worked for me (elevated prompt, Windows Update paused):

    1. Remove the stuck checkpoint package (Microsoft's workaround), then restart: 
          dism /online /remove-package /packagename:Package_for_RollupFix~31bf3856ad364e35~amd64~~26100.1742.1.10
    2. Get the original 24H2 ISO, build 26100.1742, for your language and edition, and verify its hash. Export your edition from sources\install.wim and mount it read-only as a folder. Pointing Windows at the .wim file directly does not work on 24H2/25H2. 
          dism /export-image /sourceimagefile:E:\sources\install.wim /sourceindex:<your edition> /destinationimagefile:C:\RepairSource\install.wim
    dism /mount-image /imagefile:C:\RepairSource\install.wim /index:1 /mountdir:C:\RepairSource\mount /readonly
    3. Set it as the repair source: 
          reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Servicing /v LocalSourcePath /t REG_EXPAND_SZ /d "C:\RepairSource\mount\Windows" /f
    4. Download the latest cumulative update and its checkpoint (KB5043080) from the Microsoft Update Catalog into one folder, and install the folder: 
          dism /online /add-package /packagepath:C:\Updates\lcu
      "Processing 1 of 2" fails with 0x80070228. That's harmless; package 2 installs both. Restart when asked.
    5. Afterwards, unmount the image (dism /unmount-image /mountdir:C:\RepairSource\mount /discard) and delete the LocalSourcePath value.

    N editions: also mount the Pro image as a second source (separate the paths with ;) and remove the Media Feature Pack before step 4.

    If Windows Update then keeps re-offering the update you've just installed, check ReofferUpdate under HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Update\TargetingInfo\Installed\Client.OS.rs2.amd64. The full write-up covers that.

    I've only tested this on one PC. Full details, log excerpts and caveats: ElevenForum / Sysnative.

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  2. Lucus-V 13,985 Reputation points Microsoft External Staff Moderator
    2026-03-24T16:10:42.45+00:00

    Hi Hanwhaus MIS,
    Welcome to Microsoft Q&A forum. I'm happy to help.

    Your system may have corrupt files, please scan your system by following commands using Command Prompt (Run as administrator):

    DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow

    Please reboot your computer after the task has completed.

    Then you may follow this article to troubleshoot the Windows update: Windows Update Troubleshooter - Microsoft Support.

    Alternatively, you may manually download the update package to install through Microsoft Update Catalog. Just enter the KB you need to Search form then choose the package right for your system.

    I hope that above information is helpful to you.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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  3. Neil D 34,455 Reputation points Volunteer Moderator
    2026-03-10T22:12:30.3233333+00:00

    I'd suggest you try a recovery. Settings > System > Recovery > Fix problems using windows update, then select Reinstall now. After that try the update again or check to see if it has updated as part of the recovery.

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  4. David-M 127.9K Reputation points Independent Advisor
    2026-03-10T22:10:51.8866667+00:00

    Hi. I'm David, and I'm happy to help you.

    Please clarify the following:

    Do you have a third-party antivirus installed? If yes, which one?

    Also. What is the current "OS Build" of your Windows 11?

    • Press "Windows + R", type winver, and click OK.

    If you prefer, share a screenshot. Use the shortcut "Windows + Shift + S" to use the screenshot tool.

    Be sure to censor your email address if it appears. The Microsoft Q&A is public.

    I await your reply.

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  5. AI answer

    2026-03-10T21:30:16.3+00:00

    Error 0x80073712 indicates that Windows Update components are corrupted or some update files are missing. KB5077181 is the February 2026 cumulative update for Windows 11, version 24H2 (build 26100.7821/7840). Since Windows Update cannot repair itself in this case, the most reliable fix is to repair or refresh the OS using a clean image that already includes 24H2 and its cumulative updates.

    Use these steps in order, stopping when the update installs successfully:

    1. Run basic Windows Update repair
      1. Open Settings → Windows Update → Check for updates and let it retry once more.
      2. If it still fails with 0x80073712, proceed to a repair/refresh method below.
    2. Repair Windows 11 24H2 using an in-place upgrade (keeps files and apps) This method reinstalls Windows over the top of the existing installation and replaces damaged component store files that cause 0x80073712.
      1. Download the latest Windows 11 24H2 ISO or use the Installation Assistant from the official Microsoft Software Download page.
      2. Mount the ISO (right‑click → Mount) and run setup.exe.
      3. Choose to keep personal files and apps when prompted.
      4. When asked how to get updates, choose to download updates during setup so the latest cumulative update (including KB5077181 or newer) is applied.
      5. Let setup complete and then go to Settings → Windows Update and install any remaining updates.
    3. If in-place upgrade does not work, use a clean 24H2 image If corruption is severe and the in-place upgrade fails, a clean installation using a 24H2 image is recommended.
      1. Back up all personal files to external storage or cloud.
      2. Create a bootable USB with a Windows 11 24H2 image.
        • For Surface devices, a dedicated 24H2 recovery image can be downloaded from the Surface recovery image page, then written to USB following the recovery-drive instructions.
      3. Boot from the USB and perform a clean install of Windows 11 24H2.
      4. After installation, open Settings → Windows Update and install all available updates until none remain.

    Once the system is on a healthy 24H2 build, future cumulative updates (including KB5077181 or later LCUs) should install normally without 0x80073712.

    If the device later needs to move to Windows 11 version 25H2, ensure it is fully updated on 24H2 first, then use Windows Update or the 25H2 enablement package as documented.

    References:

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