Windows 10 build 15031 releases with new features

Microsoft delivers a new test version of Windows 10 with a few new features, including compact overlay mode for apps and Dynamic Lock.

Windows 10 build 15031

Microsoft releases Windows 10 build 15031 for PCs enrolled in the Fast ring. The Creators Update preview includes a small number of features, improvements, and a long list of bug fixes over the previous test rollout.

Windows 10 build 15031, according to the company, brings compact view overlay on Movies & TV and Skype Preview apps, there is a new feature called Dynamic Lock that automatically locks your PC when you’re away, the Game bar gets more full-screen support for additional games, and more.

What’s new on Windows 10 build 15031


Compact overlay is a new mode that Microsoft is including on build 15031, and it allows developers to add a compact view for Windows Store apps. This way, you can continue to do other things, such as watching a movie or having a Skype video call while you’re checking your emails.

Microsoft notes that later on Movies & TV and Skype Preview apps will get an update to support Picture-in-Picture.

Windows 10 Picture-in-Picture
Windows 10 Picture-in-Picture


In this release, Microsoft is officially introducing Dynamic Lock, which is a new feature that automatically locks your device when you’re not around based on the proximity of a Bluetooth-paired phone.

When your Bluetooth-paired phone is not found near your device, Windows 10 turns off the screen and locks the PC after 30 seconds.

To enable Dynamic Lock, you must connect your phone via Bluetooth to your Windows 10 PC, and then go to Settings > Accounts > Sign-in options and turn on the toggle switch for Dynamic lock.

Enable Dynamic Lock on Windows 10
Enable Dynamic Lock on Windows 10

Windows Share

The share button has been updated with a new look to make it easier to identify.

Windows 10 Share icon
Windows 10 Share icon

Game bar

The Game bar experience remains exactly the same, but Microsoft is adding support for 52 new games in full-screen.

Microsoft is listing the complete set of the features, fixes, and known issues for build 15031 at the Windows Blog.

In this rollout, Windows 10 Mobile isn’t getting updated, but the company said that a new build for mobile will release in the coming days.

You can also use the following resources:

Windows 10 build 15031 is available immediately through the Fast ring. It’ll download and install automatically on your PC, but you can always force the update from Settings > Update & security > Windows Update and clicking the Check for updates button.

Update, February 10, 2017: Microsoft is making available build 15031 for Windows 10 Mobile, but unlike the desktop version of the operating system, the mobile version doesn’t include any new feature, just a slew of bug fixes. You can check the complete set of changes at the Windows Blog.

About the author

Mauro Huculak is a Windows How-To Expert who started Pureinfotech in 2010 as an independent online publication. He has also been a Windows Central contributor for nearly a decade. Mauro has over 14 years of experience writing comprehensive guides and creating professional videos about Windows and software, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 20 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and Email him at [email protected].