Windows 11 KB5124010 is Out With Smarter WinRE, PC-to-PC Migration Removal and System Monitor Fixes

In addition to accessibility changes and touchpad improvements, Microsoft has also focused on Windows Recovery, kiosk mode, Windows Backup, power management, the Camera app, File History and several System Monitor fixes with the latest preview update, KB5124010, for Windows 11 versions 24H2 and 25H2. This update bumps respective systems to Build 26100.9550 and Build 26200.9550.

Windows Recovery gets automatic Wi-Fi support

One of the more interesting additions is coming to Windows Recovery Environment, or WinRE. Windows 11 can now automatically reuse eligible Wi-Fi profiles that are already saved in the operating system. This includes supported certificate-based networks.

The change means compatible devices can automatically get online during recovery scenarios such as Quick Machine Recovery or cloud rebuilds without requiring IT administrators to preconfigure Wi-Fi credentials inside WinRE. The capability is enabled by default, although IT administrators can disable it.

Microsoft is also adding a recovery remote management plug-in that extends WinRE management capabilities for mobile device management providers.

Windows 11 changes restricted kiosk shortcuts

KB5124010 makes several changes to keyboard shortcuts in kiosk environments. The Windows + Tab shortcut is now disabled when using a restricted UX kiosk. For single-app kiosk mode, Microsoft is disabling both Windows + A and Windows + C keyboard shortcuts.

These changes are designed around the restricted nature of kiosk configurations, where access to certain Windows experiences can be intentionally limited.

Windows Backup loses PC-to-PC Migration

Microsoft is also removing PC-to-PC Migration from Windows Backup. The feature had previously been introduced through a phased rollout and allowed users to transfer files and settings directly from an old Windows PC while setting up a new one.

Microsoft now directs users toward Windows Backup to back up and restore files, settings and other supported items when moving to another PC.

Windows 11 fixes a power detection issue

The update also addresses a power and battery problem affecting some plugged-in laptops. Microsoft says certain systems could incorrectly detect a transition from AC power to battery power. KB5124010 improves display and performance behavior in these scenarios.

KB5124010 fixes Camera and File History problems

A separate fix addresses an issue where the built-in Camera could stop working in the Camera app and other applications that use the camera. Microsoft is also fixing a File History problem that could prevent files from being backed up or restored to an external drive or network location. Affected systems could incorrectly display a “Reconnect your drive” message even when a compatible backup drive was connected and working properly.

Sysmon gets three important fixes

The update includes several fixes for System Monitor, or Sysmon. First, Microsoft is fixing header validation for executable files. Truncated or malformed files could previously cause unpredictable memory usage and make tampering detection unreliable.

Another fix addresses the Sysmon file system filter driver. If the archive directory failed to open during file monitoring, closing an uninitialized handle could result in a stop error. Finally, Microsoft is fixing a process tampering detection problem where Sysmon incorrectly generated Event ID 25 alerts for the Windows Session Manager process, smss.exe.

KB5124010 also has known issues

Microsoft says domain-joined devices might lose their secure trust relationship with the domain after installing the update. There is also a known issue involving USB Audio Class 1.0 devices, which can encounter Code 10 errors or produce no audio output.