September 30, 2024—KB5043178 (OS Build 26100.1882) Preview
Release Date:
9/30/2024
Version:
OS Build 26100.1882
For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types.
Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.
Important: Windows 11, version 24H2 targets Copilot+ PCs and devices that previously used Windows Insider 24H2 builds.
Highlights
Note: 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.
These might not be available to all users because they will roll out gradually.
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[Settings] New! There is a new energy recommendation to turn off high dynamic range (HDR). This helps to conserve energy on devices that have HDR displays. Go to Settings > Power & battery > Energy recommendations.
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[Battery life] New! When your device's battery power is running low, a pop-up window will appear that asks you to plug in your device. This occurs when the battery level reaches 20% and while Energy Saver is set to “Always On”.
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[Start menu] New! The "Sign out" option is now on the account manager when you open the Start menu. To change to a different user, select the ellipses (...). A list of other users appears to make it easier to switch.
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[Taskbar] New! You can now share local files directly from the search results that appear in the Search box on the taskbar.
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[Lock screen] New!Media controls now show in the lower part of the lock screen at its center when media is playing.
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[Mouse] New! This update adds the option to turn off enhanced mouse pointer precision to Settings > Bluetooth & Devices > Mouse. There is also a new option to change the direction in which the mouse scrolls.
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[Copilot Pro subscription] New! You can now manage your Copilot Pro subscription in Settings. Sign in to your Microsoft account and go to Settings>Accounts.
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[Screen readers] The NonVisual Desktop Access (NVDA) app and other screen readers fail to narrate all the screen content from some apps. This occurs when those apps run with administrator privileges.
Improvements
This non-security update includes quality improvements. 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.
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[Open Source Software] This update adds attributions to credits.txt files for Rust OSS components.
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[Input Method Editor (IME)] When a combo box has input focus, a memory leak might occur when you close that window.
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[WebView2 apps] They do not detect input from Xbox 360 and Bluetooth controllers.
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[Task Manager]
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Its Settings page might have a white background when it should not.
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It stops responding when you switch from a high contrast theme to a normal theme.
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If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.
Windows 11 servicing stack update (KB5043117) - 26100.1881
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
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Applies to |
Symptom |
Workaround |
|---|---|---|
|
All users |
We’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. |
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.
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Available |
Next Step |
|
Yes |
Go to Settings > Update & Security > Windows Update. In the Optional updates available area, you will find the link to download and install the update. |
|
Available |
Next Step |
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No |
None. These changes will be included in the next security update to Windows Update for Business. |
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Available |
Next Step |
||||
|
Yes |
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 KB5043178 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:
Or, run the following command from an elevated Windows PowerShell prompt:
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:
Or, run the following command from an elevated Windows PowerShell prompt:
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:
|
|
Available |
Next Step |
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No |
You can import this update into Windows Server Update Services (WSUS) manually. See the Microsoft Update Catalog for instructions. |
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 5043178.
For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5043117) - version 26100.1881.
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