Key Activation to VAMT with error “The specified product key is invalid, or is unsupported by this version of VAMT”

Resolution:

Install the latest Windows Kit and do the following

  1. Copy the files under C:\Windows\System32\spp\tokens\pkeyconfig from WS2019 machine
  2. Past them on this Path C:\Program Files (x86)\Windows Kits\10\Assessment and Deployment Kit\VAMT3\pkconfig

How to create GPO to push Product key update from KMS server using WMI Access

Step 1: Edit the group policy object you wish to put these settings into.
Step 2: Expand the Computer Config > Policies > Windows Settings > Security Settings > Windows Firewall with Advanced Security > Windows Firewall with Advanced Security > Inbound Rules node.
Step 3: Right-click in the working area and choose New Rule…
Step 4: Choose the Predefined option and select Windows Management Instrumentation (WMI) from the drop-down list, Next.
Step 5: There are number of options here, but I tend to just select one: the (WMI-In) option with the Domain profile value. If you aren’t sure what you need, then just remember you can come back and add the others later. Next button.
Step 6: Allow the connection > Finish

Make sure that the below TCP ports already allowed on

  • TCP Port 135 which is used by RPC.
  • TCP Dynamic port range: 49152 to 65535 (default)
  • These ports should be opened bi-directional between source and destination.
  1. The WMI (Windows Management Instrumentation) service is enabled on the client machine.
  2. To enable WMI service, click Start -> Services -> Right click Windows Management Instrumentation and select restart