Windows 10 build 19640

Windows 10 build 19640 is the twenty-first Insider Preview build of Manganese. This build was released on 2020-06-03 to the Fast ring.


 * Bug fixes listed in the official announcement.

Bugs and quirks

 * Both the Documents and Downloads sections under privacy settings have a broken icon, and a rectangle is shown in their place.
 * Taskbar preview thumbnails do not render consistently in this build (showing a blank area).
 * Some devices may BSOD upon resuming from hibernate if booting from eMMC storage.