Microsoft released a new Insider preview build of the Windows Server VNext Semi-Annual Channel editions.

Windows Server 20H1 test build 18945 brings FIDO2 security keys

The new Windows Server 20H1 test build 18945 is available for Insiders and it brings more functionality and long awaited security features.

More specifically, Microsoft finally adds the capability for modern passwordless credentials, like FIDO2 security keys. This feature will extend to hybrid environments.

Moreover, this security feature will provide seamless Single Sign-On (SSO) and authentication to on-premises environments. FIDO2 technologies support is also available in Azure Active Directory (Azure AD).

If you’re a Windows Insider, you can get your hand on the new build from the Windows Server Insider Preview download page.

Known issue with Windows Server VNext Insider Preview Build 18945

There is an issue where the App Compatibility FOD cannot be added to the OS .wim image offline using DISM /image method.  After upgrade, it is necessary to reinstall the new FOD using DISM /online method.

This Windows Server Preview will expire on July 31st, 2020, but until then the following keys will allow for unlimited activations:

  • Server Standard: V6N4W-86M3X-J77X3-JF6XW-D9PRV
  • Server Datacenter: B69WH-PRNHK-BXVK3-P9XF7-XD84W