Windows Server build 19551.1001

Windows Server build 19551.1001 is a Windows Server Insider Preview build released on 28 January 2020. It is the first Windows Server Insider Preview build published after the release of Windows Server, version 2004, as well as the first Server build released in the Manganese semester.

Changes

 * The national Language Support (NLS) components have been changed to be container-aware.
 * The NLS state is now instanced per-container.

Bugs and quirks
On VMware, the hard drive must be connected to either IDE or SATA, otherwise setup will not be able to find the drive.