The Hyper-V host must have a valid, activated copy of Windows Server 2025 with the AVMA key installed (see below). Windows Server 2025 AVMA Keys Microsoft provides public, known AVMA keys. These do not activate standalone installations — they only work when the VM is running on a properly licensed 2025 Hyper-V host.
✅ Hyper-V on Windows Server 2025 Datacenter ✅ Isolated/air-gapped networks ✅ Automated VM provisioning (DevOps, VMM, SCVMM) windows server 2025 avma
slmgr /ipk <AVMA-Host-Key> On each Windows Server 2025 VM, install the corresponding AVMA guest key for its edition: The Hyper-V host must have a valid, activated