Windows Server build 19551.1001

Windows Server build 19551 is the first Insider Preview build of Windows Server Manganese. It was released to Windows Insiders on 28 January 2020.

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

 * You must use an IDE or SATA hard drive if you want to install this build in VMware, otherwise the setup won't be able to find the drive.