Kerberos and NTLM authentication failures due to duplicate SIDs
Cause Windows updates released on and after August 29, 2025 include added security protections that enforce checks on SIDs, causing authentication to fail when devices have duplicate SIDs. This design change blocks authentication handshakes between such devices.
January 24, 2026—Hotpatch KB5078167 (OS Builds 26200.7634 and 26100. ...
Note: Hotpatch is now generally available for Windows 11, version 25H2 and 24H2 (Arm64) devices. To get started, check the prerequisites, disable Compiled Hybrid PE (CHPE), and enroll the devices in a quality update policy with Hotpatch enabled.
Xbox network server connectivity on Windows is blocked
Four key services are required for Xbox multiplayer gaming in select games to work on Windows 10/11. If any of these services have been disabled, you’ll need to re-enable them.
Utilisation du Bureau à distance - Support Microsoft
Utilisez le Bureau à distance sur votre appareil Windows, Android ou iOS pour vous connecter à un PC Windows à distance. Vous pouvez accéder à vos applications, fichiers et bureau comme si vous étiez assis devant le PC distant.
April 14, 2026—KB5083769 (OS Builds 26200.8246 and 26100.8246)
When you open an .rdp file, Remote Desktop shows all requested connection settings before it connects, with each setting turned off by default. A one-time security warning also appears the first time you open an .rdp file on a device.
Policy-Based Removal of Pre-installed Microsoft Store Apps
The Policy-Based Removal of Pre-installed Microsoft Store Apps feature streamlines the removal of pre-installed Microsoft Store apps in Windows Enterprise and Education editions.
January 17, 2026—KB5077744 (OS Builds 26200.7627 and 26100.7627) Out-of ...
[Remote Desktop] Fixed: After installing the January 2026 Windows security update (KB5074109), some users experienced sign-in failures during Remote Desktop connections. This issue affected authentication steps for different Remote Desktop applications on Windows such as the Windows App.
March 10, 2026—KB5079473 (OS Builds 26200.8037 and 26100.8037)
This cumulative update for Windows 11, version 25H2 and 24H2 (KB5079473), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release.
Smart App Control Frequently Asked Questions - Microsoft Support
You'll need to turn S mode off, then reset your PC, to enter evaluation mode. You have optional diagnostic data in Windows turned off. If you want to turn Smart App Control on, you'll need to reset this PC, or reinstall Windows, and select Send optional diagnostic data during the setup process.
KB5054156: Feature update to Windows 11, version 25H2 by using an ...
Windows 11, versions 24H2 and 25H2 share a common core operating system with an identical set of system files. Therefore, the new features in Windows 11, version 25H2 are included in the latest monthly quality update for Windows 11, version 24H2 but are in an inactive and dormant state.