Artificial Intelligence
Microsoft releases Windows 11 KB5124010 preview update
Microsoft issued KB5124010 as a non-security preview for Windows 11 24H2 and 25H2, adding Bluetooth fixes, Copilot key remapping and other changes before next month's Patch Tuesday.
- Microsoft released KB5124010 for Windows 11 24H2 and 25H2 as a September 2026 preview update.
- The company said the package was for testing quality changes and new features before the next Patch Tuesday, and that it carried no security fixes.
- Microsoft said the update added support for Emoji 17.0, an Open apps maximized accessibility setting and a recovery remote management plug-in for WinRE.
- Microsoft said it fixed Bluetooth radio and Bluetooth audio crash issues, and improved microphone support and LE Audio reliability.
- Microsoft also said the update removed PC-to-PC Migration, fixed a File History problem linked to September 2026 security updates, and made KB5124010 the final preview update for Windows 11 24H2.
Microsoft released KB5124010 for Windows 11 24H2 and 25H2 as a September 2026 preview update. It said the package was meant for testing quality changes and new features before the next Patch Tuesday, and that it did not include security fixes.
Microsoft said the update added support for Emoji 17.0, an Open apps maximized accessibility setting, and a recovery remote management plug-in for WinRE. It also said it corrected Bluetooth radio behaviour, Bluetooth audio crashes with error code 0x139, and issues affecting microphone support and LE Audio devices.
After installing the update, users could remap the Copilot key to act as Right Ctrl or the Context Menu key. Microsoft also said the release added slideshow wallpapers for multiple desktops, extra precision touchpad gestures and camera roll backup through OneDrive.
Microsoft said it fixed a File History backup failure that followed the September 2026 security updates and removed PC-to-PC Migration. It advised using Windows Backup for moving to a new PC and said KB5124010 was the last preview update for Windows 11 24H2, which reaches end of support in October 2026.
Named in this story
Companies
- Microsoft
- released the KB5124010 preview update
Products and systems
- Windows 11
- the operating system the update targeted
- KB5124010
- the September 2026 non-security preview update
- Windows 11 24H2
- one Windows release the update applied to
- Windows 11 25H2
- another Windows release the update applied to
- WinRE
- the recovery environment extended by a management plug-in
- Copilot key
- could be remapped after the update installed
- OneDrive
- used for camera roll backup and PC migration
- Windows Backup
- Microsoft's recommended tool for moving data to a new PC
- File History
- the built-in backup feature Microsoft said it fixed
- PC-to-PC Migration
- the transfer tool Microsoft removed
- Microsoft Update Catalog
- a source for manually downloading the update
- Windows Update
- the settings path used to install the update
How the source tells it
The piece was a straightforward update notice, with instructional detail but no strong emotive framing.
No emotive framing was found in the original.