Windows 10 build 16199 (rs prerelease)

10.0.16199.1000.rs_prerelease.170513-2252
	Build of Windows 10 Fall Creators Update
OS family	Windows 10 (NT 10.0)
Version number	10.0
Build number	16199
Build revision	1000
Architecture	x86, x64, ARM64
Build lab	rs_prerelease
Compiled on	2017-05-13
Expiration date
Timebomb	2017-12-04 (+205 days)
SKUs
	Cloud; Cloud N; Home; Home N; Pro; Pro N; Enterprise; Enterprise N; Education; Single Language
Product key
	Use a Windows 10 Retail serial
About dialog

Windows 10 build 16199 is the seventh Insider Preview build of Windows 10 Fall Creators Update. This build was released to Windows Insiders in the Fast Ring on 17 May 2017.

New features and changes[edit | edit source]

Emoji sent from from a pinned contact now appear and animate on the taskbar.
A small counter on the lower-right of a pinned contact icon is added for showing number of unread messages from them.
Files can be dragged and dropped directly onto contacts to create an email, and share directly to the selected contacts via the share picker by choosing from a list of recommended people to email.
Added some new settings related to gaming. These include the ability to broadcast only the game's audio to Beam as opposed to the audio for the entire computer, and renamed the audio settings page under the settings in Game bar to be "Game DVR". Per-app audio settings are also included here as well, and added a non-functional "Game Monitor" Settings page.
Added a PC health section to Settings -> System -> About.
Added tips and videos in the Settings app. (requires internet connection)
Added an option to clean up files that have been left in the Downloads folder for 30 days. To enable it, navigate to Settings -> System -> Storage, and then click on “Change how we free up space” and then toggle the third option.
Updated Narrator, so that when ⇪ Caps Lock+E+E is pressed while its running, it launches Feedback Hub.

Bugs[edit | edit source]

This build cannot be updated from the previous builds on Surface Pro 3 or Surface 3 if an SD card is inserted.
Outlook 2016 may freeze on launch due to an issue where the spam filter gets stuck reading the Outlook Data File and the UI waits indefinitely for it to return.
Sometimes Microsoft Edge will fail to open PDF files, erroring out with “Couldn`t open PDF. Something is keeping this PDF from opening”.
Passwords cannot be typed in to login to UWP apps.
Games such as Civilization VI may fail to launch on this build.
Windows Mixed Reality does not work on this build.
The choice command will fail when run in a Command Prompt script.