2025-12 Security Update (KB5072033) (26200.7462) will not install. Any suggestions?

Jon Buuck 545 Reputation points
2025-12-09T22:22:56.5733333+00:00

I've downloaded 2025-12 Security Update (KB5072033) (26200.7462) three times, and each time it fails to install. Any suggestions or is this a problem with the update. My computer is a week old.

Windows for home | Windows 11 | Windows update

42 answers

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  1. Michael Copen 5 Reputation points
    2025-12-18T14:55:04.1833333+00:00

    I just went into WSUS to approve updates. This update and another will not download in the wsus console. That led me to this forum. I'm just going to hold off worrying about deploying the updates until the wsus implementation is fixed and from what you are all saying, it's bricking devices anyways.

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  2. Hamish McLean 5 Reputation points
    2025-12-17T21:37:11.14+00:00

    I would suggest not trying to force the update as there is clearly an issue.

    I would suggest that you wait for the next update as, MS in all their wisdom, will likely have 'fixed' the issue.

    If you try to force the update, be prepared to lose data and reimage your PC !

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  3. 林宗昇 8,360 Reputation points
    2025-12-16T05:31:10.05+00:00

    螢幕擷取畫面 2025-12-15 210659螢幕擷取畫面 2025-12-15 210724 Because the previous update to Windows 11 KB5072033 (Operating System Components 26200.7462 and 26100.7462) security update failed, and a few days later it became the Windows 24H2 patch version. I didn't update my computer, but the File Explorer interface changed, and even the dates in the User folder changed. Strange.

    What happened:

    I’ve been worried because Windows 11 security update KB5072033 (OS Build 26200.7462 / 26100.7462) has been failing to install since a few days ago.

    Yesterday, I tried updating again. After restarting, the system unexpectedly showed “Updates are in progress. Please keep your computer on.” It ran for about 20 minutes, then restarted again. Shortly after rebooting, the same message appeared once more and ran for about 3 minutes, after which Windows finally booted normally.

    However, on December 11–12, 2025, the update KB5072033 (26200.7462) still failed to install repeatedly with error code 0x800f0991.

    I also noticed that a $WINDOWS.~BT folder was created on the C: drive. Later, Windows attempted a Windows 11 24H2 repair version, which took a long time. After I deleted the Windows Update temporary files and removed the $WINDOWS.~BT folder, the update status changed again

    Why does Windows Update display the message "Some problems occurred while installing updates, but we'll try again later" whenever my laptop restarts? If you continue to see this message and want to search the internet or contact support for more information, this might help: (0x80070002) What's going on?

    It means that the installation error doesn't appear as long as the computer is turned on.

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  4. Jay Stern 5 Reputation points
    2025-12-13T02:53:40.8766667+00:00

    FIXED!!! As per Ramesh Srinivasan, Volunteer Moderator, post above on Dec 11th: I tried every repair mentioned in this thread, including a manual installation, but the KB5072033 Security Update still failed every time I attempted it. So I bit the bullet and finally followed his post's repair suggestion and reinstalled Windows (without disturbing my programs and data) using his 'Fix problems using Windows Update' option. It worked. The KB5072033 update is no longer appearing on Windows Update. Much thanks, Ramesh!

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  5. Yoram Burg 130 Reputation points
    2025-12-12T18:00:18.73+00:00

    SOLVED: used "Reset" then - "Fix Problems Using Windows Update" - it reinstalled 25H2, didn't have to reinstall anything - problem solved.

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