Windows 11 September 2024 Update (KB5043076) rolls out with fixes and visual changes

The September update brings visual changes for existing features and various fixes. Here's what you need to know.

Windows 11 KB5043076
Windows 11 KB5043076 / Image: Mauro Huculak
  • Windows 11 builds 22631.4169 and 22621.4169 (KB5043076) are now available for versions 23H2 and 22H2.
  • The September 2024 update is available through the Stable Channel with fixes and some visual improvements.
  • Microsoft is also releasing an update for Windows 11 24H2 and version 21H2.

Microsoft is rolling out the September 2024 Update for Windows 11 with the release of builds 22631.4169 and 22621.4169 as the update KB5043076 for versions 23H2 and 22H2 in the Stable Channel.

Windows 11 23H2 and 22H2 (KB5043076)

According to the official notes for September 10, 2024, the update KB5043076 brings some visual changes as well as a number of security fixes. In this release, versions 23H2 and 22H2, Windows 11 is gradually introducing a new option in the “Share” interface from File Explorer to share files directly into your Android phone once the device is connected through the Phone Link app.

Also, this update speeds up the Windows Narrator scan mode, and you can now dictate the characters you spell at a faster speed with Voice Access.

Furthermore, the Patch Tuesday release updates specific mobile operators’ Country and Operator Settings Asset (COSA) profiles.

Microsoft also notes several fixes for Bluetooth issues where certain policies can cause external devices to disconnect. The company is fixing the navigation pane on File Explorer, which might not refresh correctly when browsing folders within a shell namespace extension. If you use hibernate on Windows 11, this update fixes an issue that can occur when repeatedly closing and opening the laptop lid, which might lead to the system becoming unresponsive.

In addition, the update KB5043076 fixes a memory leak that can occur when closing a window with a combo box with input focus. The European Digital Markets Act (DMA) mandated SSO notice might appear too frequently when authenticating with a certificate, and an SCCM task to re-enable UWF can fail due to a deadlock, preventing the device from restarting as expected and accessing symbolic links, which might cause the system to become unresponsive.

On August 27, 2024, the company also updated the notes, revealing that it’s also making available improvements for the security and APIs for creating widgets and feeds for users in European Economic Area (EEA) regions for the Widgets Board feature.

Furthermore, Microsoft says that it’s now using the Microsoft Start Experience app to show content in the widgets and feed experiences. After installing this update, you will also notice that some of the widgets will be removed, and others will be modified.

It’s important to note that while version 22H2 is getting an update in September, this release will reach the end of support on October 8, 2024, for Windows 11 Home and Pro. As a result, it’s recommended to upgrade as soon as possible to version 23H2.

Windows 11 24H2 (KB5043080)

This update also releases the update KB5043080 as build 26100.1742 for Windows 11 24H2, but this doesn’t mean that the feature update is already available. Instead, the patch is available for Copilot+ PCs already running the next version of the operating system. If you have a device enrolled in the Release Preview Channel, it will also receive this update.

Microsoft notes that this release includes all the new features and changes mentioned in the update KB5041865, which the company made available on August 29.

In addition, this rollout fixes problems with the Windows Installer and Task Manager as noted in the announcement published on September 10, 2024.

Windows 11 21H2 (KB5043067)

Microsoft is also making available build 22000.3197 as the update KB5043067 for devices still running version 21H2. This update fixes a Bluetooth problem with wireless earbuds and addresses fixes for the Windows Installer, Transmission Control Protocol (TCP), LocalUsersAndGroups configuration service provider (CSP), and Unified Write Filter (UWF) Windows Management Instrumentation (WMI).

It’s important to note that version 21H2 will reach the end of service on October 8, 2024, and after this day, the operating system will stop receiving updates. It’s recommended to upgrade to the latest version to maintain the computer support.

September 2024 update installation

To download and install this Windows 11 update, open Settings > Windows Update, turn on the “Get the latest updates as soon as they’re available” option, and click the “Check for Updates” button.

If you prefer manually installing the September 2024 update for Windows 11 23H2 and 22H2, download it from the Microsoft Update Catalog website.

If you encounter issues after applying this cumulative update, you can uninstall it using these instructions to revert to the previous version of the operating system.

The update KB5043076 was originally available as a preview as update KB5041587 as build 22631.4108 and 22621.4108 through the Release Preview Channel, then the update became available as a non-security update with the same KB number but with slightly different build numbers (22631.4112 and 22621.4112).

In addition to the monthly security update for Windows 11, Microsoft is also releasing the update KB5043064 for Windows 10 alongside updates for older versions.

Update September 10, 2024: This page has been updated to ensure accuracy and include the latest information.

About the author

Mauro Huculak is a Windows How-To Expert who started Pureinfotech in 2010 as an independent online publication. He has also been a Windows Central contributor for nearly a decade. Mauro has over 15 years of experience writing comprehensive guides and creating professional videos about Windows and software, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 21 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and About.me. Email him at [email protected].