Take Action: Out-of-band update to address issue on devices running Hyper-V on Windows Server 2022

Microsoft has identified an issue where certain confidential virtual machines running on Hyper-V with Windows Server 2022 might intermittently stop responding or restart unexpectedly, affecting service availability and requiring manual intervention. This issue primarily affects Azure confidential VMs and is not expected to impact standard in-market Hyper-V deployments, except in rare cases involving preview or pre-production configurations. To address this issue, an out-of-band (OOB) update has been released today, May 23, 2025 (KB5061906). This update is available exclusively via the Microsoft Update Catalog and is cumulative—no previous updates are required before installing it. It supersedes all prior updates. This OOB update is a non-security release, and only available for Windows Server 2022. If you have not yet deployed the May 2025 Windows security update (KB5058385) and your IT environment includes Windows Server 2022 devices running Hyper-V, we recommend applying this OOB update instead: May 23, 2025—KB5061906 (OS Build 20348.3695) Out-of-band. If your organization is not affected by this issue, you do not need to install this OOB update. Message ID: MC1081492

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