Windows 10 Mobile Build 10586 Has Been Released

Posted on November 18, 2015 by Brad Sams in Windows Phones with 0 Comments


Microsoft has released a new build of Windows 10 Mobile today that is likely RTM build that will be arriving with the Lumia 950 that goes on-sale later this week. You can search for the update now on your Windows phone and Microsoft says that this the build that will be going out to existing phones.

This is a big milestone for Microsoft as it means that Windows 10 Mobile has likely now reached RTM which is a significant internal milestone. This also means that if any other vendor chooses to ship a phone with Windows 10 on it, this will be the build that they will install.

There are not any new features in this release, which is expected, as this is the final release which means the focus is purely on stability. If you have been using the builds that have been released to Insiders, you will know that there should be quite a few bugs squashed in this release, hopefully, as a few of the previous builds had been a bit buggy.

If you are upgrading there is a big known issue you should be aware of as it can corrupt some of your storage after doing a factory reset. Therefor, it is highly recommended you do a backup of your phone before upgrading to this release if you are running build 10581. You can read about the bug here (along with the entire announcement) from the Windows team. During the upgrade process your phone can enter a reboot loop which means if you are truly worried about the data on your device, you can go back to Windows Phone 8.1 using the recovery tool and then upgrading without any issue.

Per Microsoft, here is what is fixed and what’s still broken:

What’s fixed:

  • Microsoft has fixed the issue that caused the Start experience to become corrupted (garbled) after upgrading and restoring a backup from a phone that had a different resolution.
  • You should now be able to set your default save locations via Settings > System > Storage and it will correctly reflect the current storage settings. Your SD card should no longer show up as a garbled name in Storage settings either.
  • Moving apps to a SD card should no longer cause those apps to crash.
  • Microsoft made improvements to the Messaging + Skype app – through both app updates via the Store and also on the server side.
  • This should be seeing less resuming/loading text when switching apps.
  • The physical camera button should be working again if it wasn’t working for you before.
  • Apps and games should download from the Store more reliably.

Known issues:

  • After Microsoft released Build 10581 to Windows Insiders in the Fast ring, we discovered a bug in the build that will cause the filesystem to become partially corrupted after doing a factory reset. For those of you who did a factory reset of your phone, you most likely did not notice this issue on Build 10581. Due to this bug however, upgrading to Build 10586 will cause your phone to go into a reboot loop after the upgrade completes – rebooting at the Windows or operator logo. To recover your phone, you can use the hardware key combination to reset your phone which will then put it at the OOBE experience on Build 10586. Microsoft recommends that you do a backup your phone *before* upgrading to Build 10586 due to this bug. Additionally, you can also recover your phone by using the Windows Device Recovery Tool to go back to Windows Phone 8.1 and then upgrade to Build 10586.
  • Deploying Silverlight apps through Visual Studio to your phone still won’t work in this build. This issue will be fixed with the release of Visual Studio 2015 Update 1 on Nov. 30th. You can deploy UWP apps to your phone without any issues.
  • There is a known issue where the tile for Insider Hub still remains under All apps but doesn’t open. Insider Hub isn’t included in this build. There isn’t a way to get it back unfortunately. However, it’ll return in a future flight! In the meantime, use Insider Hub on the PC as a workaround.

With this version of Windows 10 completed, this means that Microsoft has completed its goal of having all of its hardware running the same OS. The core of Windows 10 is now powering all of its devices; everything from the Surface to the Xbox One now use the operating system.

While major issues are not expected with this release, let us know in the comments below if you run into any problems.

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