Microsoft: Unscheduled updates for Windows Server 2022 and Windows 10

Microsoft has released software updates outside the usual update intervals for Windows Server 2022 and Windows 10. They correct some of the more exotic bugs, at least some of which originate from the May Patchday security updates this year.

On the weekend, Microsoft released an unplanned update for Windows Server 2022. In the Windows Message Center, the company writes that certain confidential virtual machines running in Hyper-V under Windows Server 2022 can suddenly and unexpectedly stop responding or restart. This has an impact on the availability of services and requires manual intervention. This primarily affects Azure Confidential VMs. Microsoft does not expect standard Hyper-V environments to be impacted, “except in rare cases where preview or pre-production configurations” are used.

Out of sequence: Update for Windows Server 2022

The KB5061906 update upgrades the operating system to version 20348.3695. It is only available in the Windows Update Catalog. Microsoft classifies the update as a non-security update. The developers also recommend using this update if the May security updates have not yet been applied. Those who are not impacted by the problem do not need to install the unplanned update.

Around earlier last week, Microsoft's developers also released an update outside the regular cycle, which is intended to resolve issues with certain Intel vPro processors and activated Trusted Execution Technology (TXT) as well as Bitlocker. According to the entry in the Windows Message Center, the security update from May can unexpectedly terminate the “lsass.exe” process in this constellation, which starts the automatic repair function. On devices that use Bitlocker encryption, this leads to a prompt with a forced request for the Bitlocker recovery key.

Out of the ordinary: Update for Windows 10

The knowledgebase entry KB5061768 describes the unplanned update for Windows 10 that is intended to solve this problem. It updates the Windows 10 versions to 19044.5856 and 19045.5856 respectively. — is therefore available for Windows 10 21H2 and 22H2; the developers also mention the versions Windows 10 Enterprise LTSC 2021 and Windows 10 IoT Enterprise LTSC 2021. Microsoft is also distributing the update exclusively via the Windows Update Catalog. As Intel vPro tends not to be used in environments that use Windows Home or Pro versions, these are unlikely to be affected by the problem. In organizations where the issue does not occur, the update does not need to be installed, Microsoft's developers also explain.

Unplanned updates outside the usual update times have recently become more frequent at Microsoft. The company released one such bug fix back in mid-April –, which fixed a display error regarding the status of certain group policies.

(dmk)