Windows 10 PC and Mobile Preview Build 14915 Now in Fast Ring

Redstone 2 Windows 10 Insider Preview Build 14915 for PC and Mobile released to Fast ring introduces improved app and update downloads in Windows 10 with Delivery Optimization.

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Windows 10 Insider Preview Build 14915 for PC and Mobile pushed to Windows Insiders in the Fast ring. In a tweet Windows Insider chief said, "get ready for a new build," shortly after which the Windows 10 PC and Mobile Preview Build 14915 appeared in the fast ring.

First among others, the new Redstone 2 preview build introduces new features like Delivery Optimization for Windows Updates. When enabled, it’ll help download new Insider Preview builds, OS updates, and app updates from other PCs on local network as well as from other PCs on the Internet.

“When enabled, your PC may also send parts of apps or updates that you have downloaded using Delivery Optimization to other PCs,” company said.

To check your settings for Delivery Optimization, go to Settings -> Update & security -> Windows Update -> Advanced options and choosing “Choose how updates are delivered.”

Improvements and fixes for PC including:

  • We fixed the issue with being unable to use the power button on the Start menu.
  • We fixed the issue causing Cortana's text to speech capabilities to not work. Cortana should be able to read text messages out loud for you, tell jokes, sing, or give verbal prompts as expected.
  • We fixed the issue causing the Settings app to crash on certain editions of Windows 10 when navigating to different settings pages due to a missing .dll file.
  • We made a number of improvements to translations, including fixing an issue in Windows Update where it would say "your phone is up to date" in French when confirming that your PC was up to date.
  • Changing functionality via Settings > Update & security > Windows Insider Program such as your ring settings should now work again on this build. For more information – see this forum post.
  • We fixed a compatibility issue from a recent platform change that causes apps such as Yahoo Mail, Trivia Crack, Google and the Skype Translator Preview app to crash.
    We fixed an issue resulting in some Insiders experiencing a delay in Mail notification toasts appearing.
  • We fixed an issue where the "Open with" dialog's "Look for another app on this PC" link wasn't working if the dialog appeared after using the "Run" dialog to open a file with an unassociated file type.
  • We have updated the Connect flyout so that the clickable area for each device listed now spans across the full width of the flyout.
  • We fixed an issue where if a Chinese Input Method Editor is active it could result in logging in to not succeed after device goes into and is woken up from Connected Standby.
  • We fixed an issue where for certain websites in Microsoft Edge, using CTRL + A to select all text and then copying it and trying to paste it into Notepad wouldn't paste anything.
  • We fixed an issue where importing favorites into Microsoft Edge from Internet Explorer would fail if the Favorites folder had been redirected to another folder, for example "C:\Users\<user>\Documents\Favorites".

Insider Preview Build 14915 for PC and Mobile with Delivery Optimization

In additon to PC, the build also brings a number improvements and fixes for Mobile:

  • We fixed the issue causing apps to get stuck in a pending state if you move apps between a SD card and internal storage (either direction).
  • We fixed the issue causing Cortana’s text to speech capabilities to not work. Cortana should be able to read text messages out loud for you, tell jokes, sing, or give verbal prompts as expected.
  • Changing functionality via Settings > Update & security > Windows Insider Program such as your ring settings should now work again on this build. For more information – see this forum post.
  • We fixed a compatibility issue from a recent platform change that causes apps such as Yahoo Mail, Trivia Crack, Google and the Skype Translator Preview app to crash.
  • We made a number of improvements to translations, including fixing an issue with Store app install notifications, where the wrong verb was used in German when letting you know to check out the app.
  • We have updated “You need to fix your MSA” notification toast logic, so it will no longer notify you multiple times in quick succession.
  • We fixed an issue where examining Microsoft Edge’s advanced settings would result in subsequent downloads in Edge saving to the default locations, rather the preferred locations set under Settings > System > Storage.
  • We fixed an issue for Continuum-capable devices that could result in being temporarily unable to connect to a previously paired Windows 10 PC.
  • We have updated the settings for sounds so that .mp3 or .wma files downloaded straight from OneDrive or copied from File Explorer to the phone’s Ringtones folder will now display automatically in the list of available sounds for ringtones, alarms and notifications.

Additionally, there are some issues as well on both PC and Mobile:

for PC

  • Adobe Acrobat Reader crashes when you try to launch it.
  • You may experience a black screen when signing out and switching to another user account and will be unable to log in to that account. A reboot of your PC should allow you to log in to that account.
  • Bash may not work after upgrading to this build. To get it working again, go to “Turn Windows features on or off”, scroll down and check “Windows Subsystem for Linux (beta)” and click ok.  After a reboot, Bash should work again.
  • The Settings app may crash when going to Settings > Personalization.

for Mobile

  • ADDED: You will be unable to download and install additional speech and language packs in this build, explained Microsoft.

Also, Build 14393.105 which was available as the Release Preview Ring since earlier this month has now been released to production.

Aside, "Blue Light" which emits today from almost all devices today is quite dangerous to our vision. Manufacturers are now preventing this issue with either hardware or software implemented features to reduce or remove blue light emission.

Microsoft is implement similar functionality into the latest Redstonre 2 build by adding a so-called Blue Light Reduction feature, as spotted by Core.

According to Core, the feature will be a Quick Action toggle in the Notification area of Windows 10 for PC and Mobile. Toggling this on will reduce the blue light emitting from your device. It works in similar way to how the popular f.lux program works.

On top of this, the core notes, the feature will also automatically adjust the intensity based on the sunset and sunrise of the location of the device, allowing the correct amount of blue light to be emitted to avoid it affecting the sleep schedule of the person looking at the device.