Win Update KB5048667 Windows 11 Cumulative Update build 26100.2605 (24H2) - Dec. 10


UPDATE 1/14:


 Microsoft Support:

December 10, 2024 KB5048667 (OS Build 26100.2605)​

11/12/24
IMPORTANT
Because of minimal operations during the Western holidays and the upcoming new year, there won’t be a non-security preview release for the month of December 2024. There will be a monthly security release for December 2024. Normal monthly servicing for both security and non-security preview releases will resume in January 2025.


For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11, version 24H2, see its update history page.

Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.

Important: Windows updates do not install Microsoft Store application updates. If you are an enterprise user, see Microsoft Store apps - Configuration Manager. If you are a consumer user, see Get updates for apps and games in Microsoft Store.

Tip: See the release notes for Windows Server 2025.

Highlights

  • This update addresses security issues for your Windows operating system.

Improvements

This security update includes improvements that were a part of update KB5046740 (released November 21, 2024). Below is a summary of the key issues that this update addresses when you install this KB. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting.
  • This update makes miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.
If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.

For more information about security vulnerabilities, please refer to the Security Update Guide website and the December 2024 Security Updates.

Windows 11 servicing stack update (KB5049685)- 26100.2592​

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

Known issues in this update

Applies toSymptomWorkaround
All usersWe’re aware of an issue where players on Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.Players on Arm devices can play Roblox by downloading the title directly from www.Roblox.com.
All usersFollowing the installation of the October 2024 security update, some customers report that the OpenSSH (Open Secure Shell) service fails to start, preventing SSH connections. The service fails with no detailed logging, and manual intervention is required to run the sshd.exe process.

This issue is affecting both enterprise, IOT, and education customers, with a limited number of devices impacted. Microsoft is investigating whether consumer customers using Home or Pro editions of Windows are affected.
Customers can temporarily resolve the issue by updating permissions (ACLs) on the affected directories. Follow these steps:
  1. Open PowerShell as an Administrator.
  2. Update the permissions for C:\ProgramData\ssh and C:\ProgramData\ssh\logs to allow full control for SYSTEM and the Administrators group, while allowing read access for Authenticated Users. You can restrict read access to specific users or groups by modifying the permissions string if needed.

    Use the following commands to update the permissions:

    $directoryPath = "C:\ProgramData\ssh" $acl = Get-Acl -Path $directoryPath $sddlString = "O:BAD:PAI(A;OICI;FA;;;SY)(A;OICI;FA;;;BA)(A;OICI;0x1200a9;;;AU)" $securityDescriptor = New-Object System.Security.AccessControl.RawSecurityDescriptor $sddlString $acl.SetSecurityDescriptorSddlForm($securityDescriptor.GetSddlForm("All")) Set-Acl -Path $directoryPath -AclObject $acl
  3. Repeat the above steps for C:\ProgramData\ssh\logs.

Microsoft is actively investigating the issue and will provide a resolution in an upcoming Windows update. Further communications will be provided when a resolution or additional workarounds are available.

How to get this update

Before you install this update

Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

Install this update

To install this update, use one of the following Windows and Microsoft release channels.

AvailableNext Step
Yes (Windows Update)None. This update will be downloaded and installed automatically from Windows Update and Microsoft Update.
Yes (MSU)Before you install this update

To get the standalone package(s) for this update, go to the Microsoft Update Catalog website. This KB contains one or more MSU files that must be installed in order.


Install this update

Method 1: Install all MSU files together

Download all MSU files for KB5048667 from Microsoft Update Catalog and place them in the same folder (for example, C:/Packages). Use Deployment Image Servicing and Management (DISM.exe) to install the target update. DISM will use the folder specified in PackagePath to discover and install one or more prerequisite MSU files as needed.


Updating Windows PC
To apply this update to a running Windows PC, run the following command from an elevated Command Prompt:


DISM /Online /Add-Package /PackagePath:c:\packages\Windows11.0-KB

Or, run the following command from an elevated Windows PowerShell prompt:
Add-WindowsPackage -Online -PackagePath "c:\packages\Windows11.0-KB

Updating Windows Installation media
To apply this update to Windows Installation media, see Update Windows installation media with Dynamic Update.


To add this update to a mounted image, run the following command from an elevated Command Prompt:

DISM /Image:mountdir /Add-Package /PackagePath:Windows11.0-KB

Or, run the following command from an elevated Windows PowerShell prompt:

Add-WindowsPackage -Path "c:\offline" -PackagePath "Windows11.0-KB

Method 2: Install each MSU file individually, in order

Download and install each MSU file individually either using DISM or Windows Update Standalone Installer in the following order:
  1. windows11.0-kb5043080-x64_953449672073f8fb99badb4cc6d5d7849b9c83e8.msu
  2. windows11.0-kb5048667-x64_d4ad0ca69de9a02bc356757581e0e0d6960c9f93.msu

If you want to remove the LCU

To remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command: DISM /online /get-packages.

Running Windows Update Standalone Installer (wusa.exe) with the /uninstall switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.

File information

For a list of the files that are provided in this update, download the file information for cumulative update 5048667 .

For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5049685) - version 26100.2592 .



 Source:



Check Windows Updates


UUP Dump:

64-bit ISO download:

ARM64 ISO download:

 
Last edited:
Okay yea i am a bit scared to delete something heavy system related.
i have issues with Desktop background spotlight images, and they are saved under a folder called iris at MicrosoftWindows.Client.CBS_cw5n1h2txyewy
so, i just guessed that deleting settings and roaming inside the MicrosoftWindows.Client.CBS_cw5n1h2txyewy
might fix it, but it seems more stuff is depended on those settings and roaming files i think :P

Check this out to see if it helps.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3480 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
Check this out to see if it helps.
Thx a lot i will Try That! :)
 

My Computer

System One

  • OS
    Windows 11 Pro (Currently 23H2)
    Computer type
    PC/Desktop
    CPU
    Intel Core i7 5820k
    Motherboard
    Asus X99A
    Memory
    2x8 16GB RAM
    Graphics Card(s)
    Nvidia RTX 2080 TI
    Sound Card
    Intergraded
    Monitor(s) Displays
    Samsung OdysseyG7
    Screen Resolution
    4K HDR
    Hard Drives
    Samsung M2 990Pro 4TB
    PSU
    Corsair RM1000X
    Case
    Fractal Design R5
    Cooling
    Noctua 3000 RPMs
    Keyboard
    Razer Black widow
    Mouse
    Razer Naga Trinity
    Internet Speed
    1000Mbit
    Browser
    Edge
    Antivirus
    Custom
What is it with Microsoft?
I got a notification this KB was available (Jan 12, 2025) so I tried downloading it - stuck at 2%.
Paused, tried again - nope, now 0% and fails every time.
Now it errors every time. It's not on the Microsoft catalog, except for the early Dec 2024 version.

Looks like a few people are having the same issue:
Link

I would have thought this would be installed already.
Could it be part of a prior rollup and not showing as a separate KB?
Is there a way to show all KB's installed, separate and part of rollup?
Back to the Update Catalog - KB5048667 also says I should also get KB5043080, again not on my update history.
Ok - I ran the KB5043080 and it said not applicable, and KB5048667 said already installed.
...and others having the exact same problem...
Groan...
 
Last edited:

My Computer

System One

  • OS
    Windows 11 Pro 24H2
    Computer type
    Laptop
    Manufacturer/Model
    LG
    CPU
    i7 Ultra
    Memory
    16GB
    Graphics Card(s)
    Intel
    Sound Card
    Intel Realtek
    Monitor(s) Displays
    Laptop 17" & TB4 Dell 27" QHD Ultrasharp w/integral TB4 hub
    Screen Resolution
    2560x1600
    Hard Drives
    1TB SSD, 5 external WDs
    Mouse
    Logitech Master MX 3S
    Browser
    Vivaldi
    Antivirus
    Kaspersky Premium Suite
What is it with Microsoft?
Do not try to understand Microsoft. You might be subject to severe headaches, dizziness, confusion and a profound desire to start using a pen and paper and start drawing your own pictures with coloured crayons.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    CPU
    Intel® Core™ i9-12900K Desktop Processor 16 (8P+8E)
    Motherboard
    Asus TUF Gaming Z790-PLUS WIFI D4
    Memory
    G.Skill Ripjaws V Series 32gb (2x16gb) DDR4 3200mhz
    Graphics Card(s)
    Asus Dual Geforce Rtx™ 3060 TI Edition 8gb Gddr6
    Monitor(s) Displays
    BenQ EW3270U 31.5” 3840x2160 UHD 16:9 HDR LED 4K LG 27UK850-W 27'' 4K UHD IPS LED Monitor with HDR10
    Screen Resolution
    3840x2160
    Hard Drives
    Samsung 990 with heatsink PRO PCIe 4.0 Gen 4 NVMe® SSD 1TB
    WD_BLACK SN850X NVMe M.2 2280 1TB PCI-Express 4.0
    Crucial T500 2TB Gen4
    Samsung 970 Evo M.2 2280 2tb Pcie Gen3. X4
    PSU
    Corsair AXi Series AX860i Digital 860W 80 PLUS PSU
    Case
    Fractal Meshify C ATX Mid Tower Case
    Keyboard
    Logi MX Keys
    Mouse
    Logi M705
    Internet Speed
    400 mbs
    Browser
    Firefox
    Antivirus
    Eset NOD32
    Other Info
    Love fast boots
What is it with Microsoft?
I got a notification this KB was available (Jan 12, 2025) so I tried downloading it - stuck at 2%.
Paused, tried again - nope, now 0% and fails every time.
Now it errors every time. It's not on the Microsoft catalog, except for the early Dec 2024 version.

Looks like a few people are having the same issue:
Link

I would have thought this would be installed already.
Could it be part of a prior rollup and not showing as a separate KB?
Is there a way to show all KB's installed, separate and part of rollup?
Back to the Update Catalog - KB5048667 also says I should also get KB5043080, again not on my update history.
Ok - I ran the KB5043080 and it said not applicable, and KB5048667 said already installed.
...and others having the exact same problem...
Groan...
These are the last 2 updates I got back in December.
Current build level is 26100.2605, I have not seen any new update after that. 🤷‍♂️
Where did you get a notification about KB5048667 update being available on Jan 12, 2025?
It was installed back on Dec 10, 2024. 🤷‍♂️

1736654604499.webp


Edition Windows 11 Pro
Version 24H2
Installed on ‎12/‎31/‎2024
OS build 26100.2605
Experience Windows Feature Experience Pack 1000.26100.36.0

As for KB5043080 it is the old one that came out with 26100.1742. 🤷‍♂️



 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3480 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
 

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    8TB WD MyCloudEX2Ultra NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master 3
    Internet Speed
    1 Gbps Download and 35 Mbps Upload
    Browser
    Google Chrome
    Antivirus
    Microsoft Defender and Malwarebytes Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    CyberPower CP1500PFCLCD
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Surface Laptop 7 Copilot+ PC
    CPU
    Snapdragon X Elite (12 core) 3.42 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Monitor(s) Displays
    15" HDR
    Screen Resolution
    2496 x 1664
    Hard Drives
    1 TB SSD
    Internet Speed
    Wi-Fi 7 and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Windows Defender
After today's updates, KB5048667 finally installed. ;-)
 

My Computer

System One

  • OS
    Windows 11 Pro 24H2
    Computer type
    Laptop
    Manufacturer/Model
    LG
    CPU
    i7 Ultra
    Memory
    16GB
    Graphics Card(s)
    Intel
    Sound Card
    Intel Realtek
    Monitor(s) Displays
    Laptop 17" & TB4 Dell 27" QHD Ultrasharp w/integral TB4 hub
    Screen Resolution
    2560x1600
    Hard Drives
    1TB SSD, 5 external WDs
    Mouse
    Logitech Master MX 3S
    Browser
    Vivaldi
    Antivirus
    Kaspersky Premium Suite

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