Windows 10: new features included in build 9879

Windows 10 Technical Preview build 9879

Windows 10 Technical Preview build 9879 is ready for download through the Fast ring of the Windows Insider Program. There are some known issues, but there are also to new features and changes new to the operating system.

Based on user feedback Microsoft has made a few changes in this release of the preview, for example:

  • There are two new options to enable users to hid the Search or Task View (virtual desktop)  buttons on the taskbar.
  • The animation to minimize and restore open apps has now been calibrated, so it isn’t jarring anymore.
  • The Charms menu in modern apps now has a new “hamburger-style” button, which it makes easier for user to find the Apps Commands, which was a bit difficult with the previous three dots button.
  • The company also fix a bunch of bugs as a result of user submissions.

As previously shown, users will notice that they can use Snap Assist with apps across multiple monitors. Also there are 3-finger gestures to make you more productive using the touchpad.

Here is the list of new gestures:

  • 3 finger up to open the Task View.
  • 3 finder down to Show Desktop.
  • 3 finger flick to the left of right to switch to the preview app (go back 1).
  • 3 finger move left or right to bring the Task View (Alt + Tab) and you can select app you want.
  • 3 finger tap to use Search.

New UI improvements

In the new build the company has improved some UI elements in the operating system. In File Explorer, now you can pin favorite folders to the new Home section.

Modern dialog boxes now are correctly windowed.

Dialog boxes windowed

And Microsoft is also introducing new folder icons. Which the company says it’s a work in progress and more changes are coming in later builds.

New folder icons in Windows 10

New native media file support

In Windows 10 Technical Preview build 9860, we’ve noticed support for MKV media files, with the release of build 9879, Microsoft has further improved and made the experience more complete. Now you can natively play MKV files in Windows Media Player, on the desktop and from modern apps, the File Explorer even support thumbnails and metadata. Also there is support for DLNA and Play To scenarios has been included. There also new support for H.265 HEVC and more support will be added in later builds.

Internet Explorer improvements

Although, we still don’t have the modern version of Internet Explorer, the IE team has made significant improvements to enable faster rendering up to 10%. And if you see a problem, you can click the new smiley face to send a feedback to Microsoft.

Internet Explorer improvements

OneDrive improvements

Starting with Windows 10 preview 9879, Microsoft is changing the way OneDrive syncs files on your computer. Because it’s hard to see which files were “available online” (placeholder) versus “available offline” and files physically stored on your PC using Windows 8.1. Microsoft has now made changes, so OneDrive will use “selective sync”. This way you can now easily choose what files you want to have synced to your PC and you don’t have to worry about downloading. Now with this new build, you can choose to have all your OneDrive files synced to your PC or only the files you select.

OneDrive settings in Windows 10

Also because it wasn’t obvious how users could get to OneDrive files (through the Universal app or File Explorer). Now in Windows 10, Microsoft will only provide one way to access these files and this will be through the File Explorer. If you need to manage OneDrive, simply right-click the cloud icon in the System Tray and click Settings.

Of course there are more features and changes in this build yet to be discovered, stay tuned as I will writing a series of articles about all the changes.

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 15 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 21 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].