Windows Server 2025 Failover Cluster Live Migration Issue
Hi Everyone, I am facing an issue in a Hyper-V Failover Cluster environment where Live Migration intermittently fails due to a service logon-related problem. The environment was previously working normally, but now whenever we attempt to Live Migrate a VM between cluster nodes, the migration fails unless we manually run “gpupdate /force” on the Hyper-V host first. After running gpupdate /force, the migration works temporarily, but the issue returns again during the next migration attempt. This makes it appear that some policy or permission is not being applied consistently on the cluster nodes. During troubleshooting, I attempted to add “NT VIRTUAL MACHINE\Virtual Machines” to the “Log on as a service” policy under Local Security Policy > Local Policies > User Rights Assignment. However, the account does not appear or resolve in the Object Picker when trying to add it manually. At this stage, I am trying to understand whether this is related to a domain GPO overwriting local policy settings, a Failover Cluster permission issue, or something specific to Hyper-V virtual machine accounts. Has anyone encountered a similar issue where Live Migration only works after running gpupdate /force? Also, is there a correct method to add “NT VIRTUAL MACHINE\Virtual Machines” to the “Log on as a service” policy, or should this permission already exist by default on Hyper-V hosts? Any guidance or recommendations would be greatly appreciated.
Migrating local VM owner certificates for VMs with vTPM
First published on TECHNET on Dec 14, 2017 Whenever I want to replace or reinstall a system which is used to run virtual machines with a virtual trusted platform module (vTPM), I've been facing a challenge: For hosts that are not part of a guarded fabric, the new system does need to be authorized to run the VM.Hyper-V symbols for debugging
First published on TECHNET on Apr 25, 2018 Having access to debugging symbols can be very handy, for example when you are A partner building solutions leveraging Hyper-V, Trying to debug a specific issue, orSearching for bugs to participate in the Microsoft Hyper-V Bounty Program.
Hyper-V hangs when deleting VM
I have Windows 10 Pro, build 19045. I am trying to delete a VM inside Hyper-V, but when I click on Delete, the computer hangs..continuous hourglass. Tried to close Hyper-V manager, but doesn't close. My only option is to do a hard shutdown of the computer. Any suggestions or solutions? Anyone else having similar issue?
