Windows update

Knight Night 0 Reputation points
2026-09-18T17:48:57.3233333+00:00

I download this 2026-09 Security Update (KB5129195) (26200.9457) and goes to 100%, But here is the kicker and hour later or less, Then i have to download it again and I did every single thing that Microsoft told me to do and even factory reset, soft and hard, even redownloading windows 11, so that being said is it a VPN? or a game like WOW?

Windows for home | Windows 11 | Windows update
0 comments

2 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Clary-N 16,010 Reputation points Microsoft External Staff Moderator
    2026-09-18T23:54:30.9533333+00:00

    Hi Knight Night,

    Since you have already reset the PC, reinstalled Windows and tried the previous update steps, I do not want to have you repeat the same troubleshooting.

    Could you please confirm the following?

    • Press Windows key + R, type winver and share the Windows version and OS build shown.
    • Under Settings > Windows Update > Update history, does KB5129195 show as successfully installed or failed? If it failed, what exact error code is listed?
    • Does it reach the installation stage and request a restart or does it return to downloading again without installing?
    • Are you using any third-party antivirus, firewall, VPN or game launcher that starts automatically with Windows?

    As the next test, I suggest trying the update in a clean boot with the VPN disconnected and any nonessential USB devices removed. This can help determine whether a background service or network filter is interfering. I would not uninstall World of Warcraft at this stage.

    *Disclaimer: A "clean boot" starts Windows with a minimal set of drivers and startup programs. It helps to determine whether a background service is interfering with your game or program and to isolate the cause of a problem. 

    These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by-step so that it will help you get back on track. 

    If the update still returns, please share screenshots of winver and the relevant entry in Update history, with any personal information removed. That should help narrow down whether the update is failing, rolling back or simply being offered again after it has already installed.

    I’ll be glad to take a closer look once you have those details.

    Was this answer helpful?

    0 comments

  2. AI answer

    2026-09-18T17:49:13.15+00:00

    A VPN or a game like WoW is not identified here as the cause of KB5129195 repeatedly downloading.

    The supported facts from the available guidance are:

    1. KB5129195 can require prerequisite checkpoint cumulative updates. If a required checkpoint cumulative update is already present, Windows will report that update as already installed. When installing manually, the documented x64 order is:
      1. windows11.0-kb5043080-x64_953449672073f8fb99badb4cc6d5d7849b9c83e8.msu
      2. windows11.0-kb5129195-x64_ed361878ec2b56a7dfdb8f256565263a7fdc8eaa.msu
    2. A safer manual install path is to install all required MSU files together with DISM. DISM automatically scans the package folder and installs any required checkpoint cumulative updates.
    3. For a running Windows 11 PC, the documented x64 command is: 
         DISM /Online /Add-Package /PackagePath:c:\packages\windows11.0-kb5129195-x64_ed361878ec2b56a7dfdb8f256565263a7fdc8eaa.msu
      Or from elevated PowerShell: 
         Add-WindowsPackage -Online -PackagePath "c:\packages\windows11.0-kb5129195-x64_ed361878ec2b56a7dfdb8f256565263a7fdc8eaa.msu"
    4. If Windows keeps saying a restart is needed, repeated restarts can matter. If the system still reports restart-required after restarting, guidance says to restart again. If that continues after multiple restarts, reinstalling recently installed programs or Windows updates can allow a failed installation to complete. Do not try to fix this by editing the registry; that is specifically warned against.
    5. BitLocker does not need to be suspended for Microsoft Windows updates. No user action is required for BitLocker for Microsoft quality or feature updates.

    Practical next step:

    • Put the required .msu files for KB5043080 and KB5129195 in C:\packages.
    • Open Command Prompt as administrator.
    • Run: 
        DISM /Online /Add-Package /PackagePath:c:\packages\windows11.0-kb5129195-x64_ed361878ec2b56a7dfdb8f256565263a7fdc8eaa.msu
    • Restart Windows when prompted.
    • If Windows still loops back into the same update after multiple restarts, avoid registry changes.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

    Was this answer helpful?

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.