HomeWinBuzzer NewsMicrosoft Debuts Windows 10 Build 16278 for PC on the Fast Ring

Microsoft Debuts Windows 10 Build 16278 for PC on the Fast Ring

Windows Insiders can now download Windows 10 build 16278 on the Fast Ring. The release is the third Fast Ring preview build in the space of a week and focuses on solving known issues.


Windows Insider Program members on the are receiving a new preview for PC. is sending out Windows 10 build 16278 as a PC preview. Users looking for new features will be disappointed, but there are several major fixes for known problems.

Indeed, fixing up issues is the focus of Windows 10 build 16278. That makes sense as it is the third Fast Ring release in a week. Last Wednesday, Microsoft launched build 16273 with new Emoji notifications in My People, and a new Bahnschrift font.

That update was followed on Friday by Windows 10 build 16275, which itself had a bunch of fixes. Of course, we are drawing nearer to the full launch of the (FCU). This means preview updates will generally be focused on solving problems ahead of the full release. Most new features have already been previewed in previous releases.

With Windows 10 build 16278, Microsoft has not listed any new known issues. That is not to say there aren't any problems, instead Microsoft is simply not listing them at the moment. The company confirmed this last week, saying updates are becoming too frequent to list problems.

Interestingly, we still do not have concrete information on when the RTM build for the FCU will launch. Considering it is widely expected to drop in September, we would have thought the final release date would have been leaked.

Either way, we know it will drop soon and Microsoft will move on to Redstone 4 on the Fast Ring. The next major Windows 10 version is currently in development, with Insiders able to access very early builds through the recently announced Skip Ahead feature.


Back to Windows 10 build 16278, Insiders can install it via Settings>Update & security>Windows Update>Check for updates. Below is the full fix list for the build:

  • We fixed an issue where upgrading to recent flights would fail if you had a speech for a secondary language installed.
  • We fixed an issue where printing from 32-bit apps running on 64-bit versions of the OS was broken when using v3 print drivers on recent builds.
  • The ability to take HDR screenshots on your PC via the Xbox app has been removed starting with this build. We plan to re-introduce this feature again in the future.
  • We fixed an issue resulting in drag and drop onto websites intermittently not working in Microsoft Edge.
  • We fixed an issue where Microsoft Edge would crash after choosing to pin certain websites to Start.
  • Fixed an issue where a tab in Microsoft Edge could get in a state where it displayed a tab preview thumbnail even though your mouse wasn't hovering over the tab.
  • We fixed an issue in Microsoft Edge for certain websites where after watching an embedded video full screen then using Esc to return to the page would result in the video controller no longer being visible.
  • We fixed an issue in Microsoft Edge where pasting an image to Imgur.com from your clipboard wouldn't work.
  • Fixed an issue where the Emoji Panel's tooltips could become mixed up.
  • We fixed an issue from recent flights resulting in precision touchpads potentially dropping gestures after coming out of sleep.
  • We fixed an issue where the battery flyout might incorrectly show “PC not charging” while the device was changing in recent builds.
  • Fixed an issue where fonts using shortcuts would become unusable and disappear from the Fonts folder.
  • We fixed an issue resulting in multiple apps crashing in the previous flight if you tried to log into the app using .
  • We fixed and issue where Delivery Optimization Group Policy / MDM policy for DOMinFileSizeToCache was ignored and the service defaults were used instead.
Luke Jones
Luke Jones
Luke has been writing about all things tech for more than five years. He is following Microsoft closely to bring you the latest news about Windows, Office, Azure, Skype, HoloLens and all the rest of their products.

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