Microsoft releases optional Windows 11 KB5124010 update for 24H2 and 25H2
The September preview update brings interface and backup changes, while Microsoft also documents domain-trust and USB audio issues affecting some systems.
TLDR
Microsoft’s optional KB5124010 update is available for Windows 11 24H2 and 25H2, moving them to builds 26100.9550 and 26200.9550. It includes Copilot-key remapping, camera-roll backup, touchpad and font changes, plus updated AI components for Copilot+ PCs. Microsoft also lists issues that can affect some Credential Guard-protected domain devices and USB Audio Class 1.0 hardware. Consumer devices can find the update under Optional updates in Windows Update.
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