Windows Server 2019 – KMS Activation with Windows Server 2016

UPDATED – I had noticed that the Windows Server 2019 servers were still showing as unlicensed. Re-running slmgr /ipk <Activation key> from the command prompt resolved the issue. 


At a client site the other day we introduced two new Windows Server 2019 servers. There was already a KMS host in place however this server did not have the appropriate keys in place to license Windows Server 2019.

After retrieving the Windows Server 2019 KMS keys from Windows Volume Licensing I went to install the keys in VAMT.  The first error I receive displayed that this is an incorrect license key, searching the web I came across this Microsoft article.

In our case Windows Server 2016 is supported but you need to be patched to the latest level. The patch to support Windows Server 2019 on a Windows Server 2016 KMS host came out in November.  I applied the latest patches and made sure everything was up to date but this article forgot to mention one thing. If you are not using ADBA (Active- Directory Based Activation) you need to make sure that VAMT is at least at the following build 10.1.17763.0 otherwise you will run into problems.

Once I upgraded VAMT then I was able to add my Windows Server 2019 volume license an update license the servers.

Windows Server 2016 – Windows Update Settings stuck on Custom setting

Ran into an issue today where we were unable to change Windows Update from Custom to Manual or any other setting.

2018-11-12_15-04-30 In order to resolve this issue you need to create the following keys in the Registry using Regedit. They just need to exist in the registry in order for the change to take place within sconfig.





Remove stale WSUS settings and restore Windows Update defaults to a server.

We are in the process of removing our old WSUS server that has faithfully served our client for main years. However now it is time to restore the servers pointing to this box back to the default value of Windows Update.

You can do this either with Powershell or editing the registry.

  1. Stop the Windows Update service
  2. Open regedit
  3. Find the following key: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\
  4. Right-Click and delete the registry key Windows Update
  5. Restart the Windows update Service