PVS on Azure - When shutting down a target from the PVS console or the Azure portal vdisk locks are not releasing properly.

Make sure the vmicshutdown service is set to manual.

---

Problem Cause

If the vmicshutdown service is disabled then the host can't trigger a friendly shutdown inside the virtual machine. All shutdowns will be a hard power-off, which could cause data loss or data corruption.  A hard power-off will also prevent the PVS target device software from logging off from the PVS server and the vdisk lock will not be cleared.

https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/integration-services#hyper-v-guest-shutdown-service