Updates to Windows Server that were included in Microsoft’s Patch Tuesday batch of fixes this week could trip up users who want to spin up new virtual machines in some Hyper-V hosts. The software giant is warning the problem can arise after installing the KB5021249 or KB5021237 updates on Windows Server or Azure Stack HCI hosts that are managed by System Center Virtual Machine Manager (SCVMM) and are in software-defined networking (SDN)-enabled environments with a network controller.

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