Windows 10 build 18917

Windows 10 build 18917 is the sixteenth public build of the "20H1" update for Windows 10. It was released on 2019-06-12 to Windows Insiders in the Fast ring.

New changes

 * Download throttling options for Update Delivery Optimization.
 * Improvements to Narrator when navigating and reading tables.
 * Introduction of Windows Subsystem for Linux 2
 * Windows Ink Workspace Updates
 * Bugfixes and general improvements listed in the official announcement.