Microsoft released an emergency update to fix issues causing Hyper-V virtual machines with Windows Server 2022, especially Azure confidential VMs, to freeze or restart unexpectedly. This update addresses the direct send path problem affecting service availability and requires manual installation. #HyperV #WindowsServer2022 #AzureConfidentialVMs
Keypoints
- Microsoft issued an out-of-band update KB5061906 to fix virtual machine freezing and restarting issues.
- The problem mainly affects Azure confidential VMs running on Windows Server 2022.
- The update must be installed manually from Microsoft Update Catalog as it does not auto-install via Windows Update.
- Previous updates in May 2025 and late 2023 also caused VM boot and launch issues requiring emergency fixes.
- Microsoft recommends applying the update if your environment has Hyper-V on Windows Server 2022 and is not yet patched.