Microsoft has unveiled the KB5051974 cumulative update for Windows 10 versions 22H2 and 21H2, a significant release that not only introduces the new Outlook for Windows app but also addresses a memory leak issue that has been affecting users.
This update is mandatory, as it includes essential security updates for January 2025, aligning with Microsoft’s Patch Tuesday schedule. Users can initiate the installation by navigating to Settings, selecting Windows Update, and clicking on ‘Check for Updates’. Given its mandatory nature, the update will automatically commence once the check is performed. To ease the process, users have the option to schedule a restart at a convenient time for the installation to complete.
Source: BleepingComputer
Upon installation, Windows 10 version 22H2 will be updated to build 19045.5487, while version 21H2 will transition to build 19044.5487. For those who prefer a more hands-on approach, the KB5051974 update can also be manually downloaded from the Microsoft Update Catalog.
In light of the upcoming holiday season, Microsoft has announced that there will be no preview updates for Windows 10 in December, with the next round resuming in January 2025.
What’s new in Windows 10 KB5051974
The KB5051974 update encompasses a range of fixes aimed at enhancing the overall user experience. Among the eleven adjustments, several key improvements stand out:
- [Mail] New! The introduction of the new Outlook for Windows app, which now appears alongside the classic Outlook icon in the Start menu. No changes have been made to existing settings or defaults. IT administrators can refer to guidelines on managing this update at Control the installation and use of new Outlook.
- [Screen capture] Resolved an issue where the Capture Service and Snipping Tool would become unresponsive when the Windows logo key+Shift+S was pressed multiple times with Narrator enabled.
- [Chinese Pinyin input method editor (IME)] Automatic suggestions from Bing in the search box for sites like Baidu have been disabled. Users can now access manual suggestions using Ctrl+Tab or the chevron button (>).
- [Digital/Analog converter (DAC) (known issue)] Fixed issues related to USB audio devices, particularly with DAC audio drivers based on USB 1.0, which previously caused playback interruptions.
- [USB audio device drivers] Resolved the code 10 error message, “This device cannot start,” which occurred when connecting certain external audio management devices.
- [USB cameras] Addressed the issue where the device failed to recognize that the camera was active after installing the January 2025 security update.
- [Virtual memory] Fixed a problem that depleted virtual memory, potentially causing some applications to malfunction.
Microsoft has also identified three known issues stemming from previous updates. One notable concern involves OpenSSH connections, which may fail post-update due to the SSHD service not starting automatically. Users can resolve this by manually initiating the SSHD service.
Moreover, the installation of the January 2025 and subsequent Windows updates may encounter failures if the Citrix Session Recording Agent (SRA) version 2411 is present on the device. A workaround involves stopping the Session Recording Monitoring service, applying the Microsoft security update, and then re-enabling the service, as detailed in a Citrix support bulletin.
Lastly, users may notice an Event 7023 error in the Windows Event Viewer related to SgrmBroker.exe, indicating that “The System Guard Runtime Monitor Broker service terminated with the following error: %%3489660935.” Microsoft assures users that this error does not affect device functionality and will be addressed in future updates.
For a comprehensive list of fixes, users can refer to the KB5051974 support bulletin, along with last month’s KB5050081 preview update bulletin.