Automatic Virtual Machine Activation (AVMA):

Automatic Virtual Machine Activation (AVMA) was first introduced in Windows Server 2012 R2. This technology allows to automatically activate all virtual machines with guest Windows Server running on the Hyper-V host with the Windows Server Datacenter edition. Thus, any new virtual machine running Windows Server will be automatically activated when started with no need to use a MAK key, activate a VM on the KMS server, connect to the Internet or manually activate a product.

• The public key of AVMA (listed below) must be specified as the product key on guest OSs.
• Integration Services must be installed on a VM, and Data Exchange (Management -> Integration Services) option must be enabled in the VM properties.
• A guest OS must have Microsoft Hyper-V Activation Component.

To activate guest OSs using AVMA, they must have special AVMA keys which differ depending on the version and edition of the OS.

Windows Server 2012 R2

Edition	AVMA Key
Datacenter	Y4TGP-NPTV9-HTC2H-7MGQ3-DV4TW
Standard	DBGBW-NPF86-BJVTX-K3WKJ-MTB6V
Essentials	K2XGM-NMBT3-2R6Q8-WF2FK-P36R2

Windows Server 2016

Edition	AVMA Key
Datacenter	TMJ3Y-NTRTM-FJYXT-T22BY-CWG3J
Standard	C3RCX-M6NRP-6CXC9-TW2F2-4RHYD
Essentials	B4YNW-62DX9-W8V6M-82649-MHBKQ

Windows Server 2019

Edition	AVMA Key
Datacenter	H3RNG-8C32Q-Q8FRX-6TDXV-WMBMW
Standard	TNK62-RXVTB-4P47B-2D623-4GF74
Essentials	2CTP7-NHT64-BP62M-FV6GG-HFV28

An AVMA key has to be specified during guest OS installation or any time after it using the following command run elevated:

slmgr –ipk <AVMA_Key>