Microsoft released Windows 11 KB5126056, KB5124015 setup and recovery updates

Live updates

1. 1h ago

   Microsoft issues emergency Windows 11 updates to fix RDS and audio bugs

   Microsoft released out-of-band update KB5129195 to resolve critical failures introduced during September's Patch Tuesday. The emergency patch addresses Remote Desktop Services failures, a SYSTEM privilege flaw, and bugs affecting Hyper-V folder-sharing and USB audio. These fixes follow previous reports of issues with USB Audio 1.0 devices and Linux functionality on Windows. The rollout prioritizes restoring system stability and remote access capabilities after recent updates caused software regressions across multiple system components.

   Why it matters

   Out-of-band updates are released outside the standard monthly cycle to address urgent security or stability risks. These specific fixes target regressions that impacted remote work tools and hardware compatibility.

   What is confirmed

   • Microsoft released emergency out-of-band update KB5129195.
   • The update fixes Remote Desktop Services failures.
   • The patch addresses bugs affecting USB audio and Hyper-V folder-sharing.

   Still unconfirmed

   • The update fixes a SYSTEM privilege flaw.
   • A recent update broke Claude Cowork.
   • Recent updates caused issues with running Linux on Windows.

   What to watch next

   • Confirmation of KB5129195 deployment rates across enterprise environments
   • Reports on whether the SYSTEM privilege flaw was exploited prior to the patch
   Sources used for this update (3)

   1. www.bleepingcomputer.com — Microsoft releases emergency Windows updates to fix RDS failures
   2. www.notebookcheck.net — Microsoft releases emergency Windows 11 KB5129195 update
   3. www.pcmag.com — Microsoft Rolls Out Fix for Windows 11 Update That Broke Claude Cowork
   confidence 90%
2. 1d ago

   Microsoft Issues Windows 11 Setup and Recovery Updates

   Microsoft released setup and recovery updates KB5126056 and KB5124015 for Windows 11. These releases arrive alongside new Insider builds for the Beta and Experimental channels. While Neowin confirms the specific recovery updates, other reports indicate a fix for a classic feature and upcoming additions to the OS. Users on the Insider program can now access builds released as of 8 September 2026, which include experimental testing and beta features. The current rollout focuses on system stability and recovery tools.

   Why it matters

   Setup and recovery updates ensure users can restore their systems after critical failures. These updates typically target the Windows Recovery Environment to prevent boot loops or installation errors.

   What is confirmed

   • Microsoft released Windows 11 KB5126056 and KB5124015 setup and recovery updates.
   • New Windows 11 Insider builds were announced for 8 September 2026.
   • Insider builds are available on the Beta and Experimental channels.

   Still unconfirmed

   • Windows 11 will soon allow users to remap the Copilot key and add Bigfoot.

   What to watch next

   • Release of the Copilot key remapping feature to stable builds
   • Detailed patch notes for KB5126056 and KB5124015
   Sources used for this update (5)

   1. Neowin — Microsoft released Windows 11 KB5126056, KB5124015 setup and recovery updates
   2. bgr.com — Windows 11 Update Finally Fixes A Classic Feature That Should Have Never Been Changed
   3. Windows Central — Windows 11 will soon add Bigfoot and let you remap the Copilot key
   4. Windows Blog — Announcing new builds for 8 September 2026
   5. Thurrott.com — New Windows 11 Insider Builds Are Available on the Experimental and Beta Channels
   confidence 90%