2026-11 Security Update (KB5132061) (26300.9974) Failed to install on ‎11/‎11/‎2026 - 0x800f0993

Anders Strand-Holm 120 Reputation points
2026-11-11T16:15:48.6033333+00:00

This Security Update will absolutely not install. Upon a download where it jumps up to 100% all of a sudden it begins to install. Again slowly but suddently to 68% then 99% and then "Failed to install on ‎11/‎11/‎2026 - 0x800f0993". I have tried three times with same result. Then I decided to let WU show-hide tool hide the update. Next I paused WU until later in November. After a moment I asked WU to resume updates. I did not find additional updates.

The Security Update (KB5132061) (26300.9974) will stay hidden until a useful solution has been found.

This is third time I have had trouble with Security updates. A tedious, time consuming and annoying job.

Can anybody help solve the problem? - Thanks.

Windows for home | Windows 11 | Windows update
0 comments
Answer recommended by moderator
Ramesh 183.6K Reputation points Volunteer Moderator
2026-11-12T08:10:18.1533333+00:00

@Anders Strand-Holm This is what Microsoft stated:

This issue affects a limited number of devices that installed the October 2026 non-security preview update (KB5127936). Devices that did not install the October 2026 non-security preview update are not affected.

Resolution: The resolution for this issue is automatically running in affected devices connected to the internet and using Windows Update in Settings to install updates. No manual action from end-users is required to receive the repair. All affected devices should be repaired in 24 to 48 hours starting from November 11, 2026, 10am PT. Once your device receives the repair, it will automatically download and install the November 2026 security update via Windows Update. You can also install the update by following these instructions. We will update this documentation once the resolution rollout is completed.

Credits: Susan Bradley.

Was this answer helpful?

5 people found this answer helpful.

4 additional answers

Sort by: Newest
Most helpful Newest Oldest
  1. Derek Sanders 0 Reputation points
    2026-11-12T08:57:48.97+00:00

    I had the exact same issue and solved it by doing the following:

    1. Goto the Microsoft Update Calalogue search for and download the stand-alone version of the security update KB5132061.
    2. Open the Command Prompt as administrator and run the following commands:
    3. DISM /Online /Cleanup-Image /RestoreHealth
    4. sfc /scannow
    5. Then run the downloaded KB5132061 package and the update should then install. I did this work around on two PCs and it worked on them both.

    Was this answer helpful?

    1 person found this answer helpful.
  2. Thomas4-N 23,505 Reputation points Microsoft External Staff Moderator
    2026-11-12T07:31:12.0066667+00:00

    Hello Anders Strand-Holm,

    I'm sorry you've had to deal with repeated update failures. I understand that you'd prefer someone to assist rather than having to troubleshoot this yourself.

    Similar failures with KB5132061 and error 0x800f0993 have been reported by other users:

    Microsoft Q&A: KB5132061 installation error

    Windows Latest: KB5132061 installation problems

    There isn't a confirmed universal fix yet, and I wouldn't want to suggest more complicated procedures when you've already said you're uncomfortable with them.

    I'd recommend contacting Microsoft Support and requesting assisted troubleshooting for the failed update. They can advise you on the available support options.

    Was this answer helpful?

  3. Anders Strand-Holm 120 Reputation points
    2026-11-11T16:24:34.55+00:00

    I am not comfortable to go into this self service process. Will somebody please come forward and assist me in solving this problem.

    Was this answer helpful?

    0 comments

  4. AI answer

    2026-11-11T16:16:03.8933333+00:00

    For this specific Windows 11 security update, the supported self-service options in the provided material are:

    1. Use Settings > System > Recovery > Reinstall now under Fix problems with Windows Updates.
      This process is described as not affecting files, settings, or installed apps.
    2. Install KB5132061 manually from the Microsoft Update Catalog. For x64, this update requires the checkpoint cumulative update to be installed before the target cumulative update if it is not already present:
      1. windows11.0-kb5043080-x64_953449672073f8fb99badb4cc6d5d7849b9c83e8.msu
      2. windows11.0-kb5132061-x64_aedc878e9e078df2ec7e2cfb98dd5b21831cdbcc.msu
    3. Instead of double-clicking each MSU, place all KB5132061 MSU files for the correct architecture in the same folder such as C:\Packages, with no other files in that folder, and install from an elevated Command Prompt: DISM /Online /Add-Package /PackagePath:c:\packages\windows11.0-KB5132061-x64_aedc878e9e078df2ec7e2cfb98dd5b21831cdbcc.msu Or from an elevated PowerShell window: Add-WindowsPackage -Online -PackagePath "c:\packages\windows11.0-KB5132061-x64_aedc878e9e078df2ec7e2cfb98dd5b21831cdbcc.msu"
    4. If the required checkpoint cumulative update is already present, Windows will indicate that it is already installed.
    5. If the device is managed through WSUS, this update syncs automatically when Product = Windows 11 and Classification = Security Updates are configured.

    Note: the catalog guidance states that if additional Dynamic Update packages are installed, use versions from the same release month as this update.

    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.