Windows 10 Insider Preview Build 15046 Offer to Block non-Store App Install

You now have the option to control what type of apps are allowed to install on your PC--a Stoe app, or non-Store app in Build 15046. Plus, new Windows 10 SDK Preview Build 15042.

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Microsoft begin the week with releasing a new Windows 10 Insider Preview for PC to Windows Insiders in the Fast ring. The new Creator's Update Build 15046 provide different colors and icons to try out along with fixes and updates.

Probably, the most interesting features in this build is an "opt-in" feature that provide "application installation control." The default setting will "allow installation of apps from anywhere."

Available now from Settings -> Apps -> Apps & features, this feature now lets you choose from the following options: "allow installation of Store apps," or choose to be warned "when installing a non-Store app but allow their installation," or choose to "allow installation of apps from anywhere."

When either of the Store options is selected, Sarkar notes, a warning appear when attempting to install a non-Store app, and direct you to Store for an alternate app "if available." In some cases, if an equivalent app is available in the Store, a link to the app with the warning is provided as well.

Creators Update Build 15046 Application Install Control
Creators Update Build 15046 Store Application Install Control

Cortana's home on the taskbar in this build is back to the color it was before. Also, you can now pick up where you left off across your devices in Cortana. Additionally, Cortana now proactively shows Microsoft Edge apps, files and websites in Action Center.

Windows Defender Security Center helps you see at a glance 'protection status' through the newly added notification icon in the notification area. Using the notification icon,

you can easily launch the app as well as, when it's clicked, will lead you to the Windows Defender Security Center. Windows Defender Security Center can also be launched directly from Settings app and "App and Browser" page.

For non-English languages, this build introduces improvements– particularly in OOBE and for some of newer settings, but across the system as well.

Finally, the Gaming icon in Settings is been updated to feel more inline with other icons on the Settings home page.

A new Windows 10 Creators Update SDK Insider Preview Build 15042 or greater is released today, contains bug fixes and under development changes to the API surface area. "If you are working on an application that you need to submit to the store, you should not install the preview," the team said.

The Preview SDK can be downloaded from developer section on Windows Insider.

Microsoft also released ISO images for Windows 10 for PCs build 15042, with following choices:

  • Windows 10
  • Windows 10 Enterprise
  • Windows 10 Education
  • Windows 10 Home Single Language
  • Windows 10 Home China

The ISOs are available for download over HERE.

Finally, for those facing hang when installing build 15042, Microsoft as posed a workaround with step-by-step guide to complete the installation successfully:

  1. Manually reboot your PC if it "hangs" at the boot logo during the first attempt to install build 15042
  2. Allow your PC to successfully roll back to your previous OS build
  3. Log into your PC and open a Command Prompt (Admin) window:
  4. Note: You MUST do this in Command Prompt, NOT PowerShell!
  5. - Click Start
  6. - Type Command Prompt
  7. - Right-click Command Prompt (desktop app) in the results list
  8. ​- Select Run as Administrator
  9. - Click Yes to confirm
  10. One line at a time, paste these commands into the command prompt window.
  11. Press enter after each line:
  12. reg delete HKEY_LOCAL_MACHINE\system\setup\upgrade\nsimigrationroot /f
  13. netsh int ipv6 set locality state=disabled
  14. reg delete HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nsi\{eb004a01-9b1a-11d4-9123-0050047759bc}\28 /f
  15. Close the Command prompt window
  16. Reboot your PC
  17. Re-scan for updates and re-attempt the install

Completing the above steps should allow you to proceed and install build 15042 as expected; but If you encounter any additional issues, Microsoft wants to know about it.

Here's the full changelog:

Build 15046 for PC:

  • We fixed the issue causing a small percentage of PCs to fail to update to recent builds due to a corrupt registry key.
  • We fixed the issue causing Microsoft Edge and / or the taskbar to stop responding requiring you to open Task Manager to restart explorer.exe.
  • Windows Hello face authentication should work again on Surface Pro 4 and Surface Book devices.
  • After updating to a new build, we've updated the text on the welcome screen to say "Might take several minutes" instead of "Might take several minutes or so". Thanks to everyone who sent feedback on how the original phrasing was overly casual.
  • Cortana's background is now black instead of the previous grey.
  • We fixed an issue in tablet mode where, with certain DPI levels, Start tiles would render on first launch of Start after entering tablet mode but on subsequent launches would appear blank.
  • We fixed an issue resulting in Shift+F10 not working to open context menus for websites displayed in Microsoft Edge.
  • We fixed an issue in Microsoft Edge where using the left/right arrow keys might sometimes unexpectedly result in forward/back page navigation.
  • We fixed an issue resulting in copy failing the first time you tried to copy a password from the LastPass extension in Microsoft Edge to a website.
  • We fixed an issue resulting in the Microsoft Edge app window being unexpectedly slow to follow your mouse when dragging it around the screen.
  • We fixed an issue in Microsoft Edge where, after opening a link in a new tab, tooltips might start drawing behind the Microsoft Edge window instead of on top.
  • We fixed an issue that could result in input no longer working in a particular Microsoft Edge tab after tearing it away to make a new window.
  • We fixed an issue resulting in Microsoft Edge launching on pen click when that was the configured pen click action in Pen and Windows Ink Settings.
  • We fixed an issue resulting in Microsoft Edge sometimes unexpectedly crashing when deleting characters typed using an IME (for example, the Japanese IME, or the MS Pinyin IME).
  • We fixed an issue resulting in drag and drop (for example, into an Outlook 2016 email) sometimes not working on PCs with multiple monitors where the two monitors have different DPIs.
  • We fixed an issue where the icon for Windows Insider Program under Settings > Update & security was shown as a square.
  • We fixed an issue where all windows on a PC using multiple monitors would move to the primary monitor after remoting into the machine from a single monitor remote desktop session.
  • We fixed an issue resulting in Storage Sense in Storage Settings failing to purge the recycle bin with certain machine configurations.
  • We fixed an issue resulting in an unexpected and unnamed 0 byte item listed under Manage Optional Features in Settings.
  • We fixed an issue where PC Reset wasn't working in the last flight, the PC would boot to a blue screen saying that there was a problem resetting your PC.
  • We fixed an issue resulting in being unable to mount an ISO with the sparse file attribute set.
  • We fixed an issue where handwriting text candidates might stop working properly after using strikethrough to erase words written in the handwriting panel.
  • We fixed an issue resulting in the Korean IME's composition indicator unexpectedly not appearing when typing jamo into certain text fields.
  • We fixed an issue where app updates in the Store may fail with error code 0x8020002B.
  • We fixed an alignment issue with entries on the Sign-in options Settings page.
  • We fixed the issue causing the Microsoft Edge F12 Developer Tools to intermittently crash, hang, and fail to accept inputs. If you continue to have issues with the F12 Developer Tools, send us feedback!
  • We fixed the issue where pressing F12 in Microsoft Edge multiple times invokes multiple F12 windows (all but one are non-functional).
  • We fixed the issue where toggling F12 between the docked and undocked state repeatedly can crash Microsoft Edge.

Known issues for PC:

  • Some PCs will fail to update to this build at 71% and roll-back to the previous build.
  • [GAMING] Some popular games might minimize to the taskbar when launched. You can click on the game on the taskbar to get the game back.
  • [GAMING] Certain hardware configurations may cause the broadcast live review window in the Game bar to flash Green while you are Broadcasting. This does not affect the quality of your broadcast and is only visible to the Broadcaster.
  • Some UWP apps may unexpectedly appear with their app package in the title bar as opposed to the app name.
  • Pressing F12 to open the Developer Tools in Microsoft Edge while F12 is open and focused may not return focus to the tab F12 is opened against, and vice-versa.
  • Sometimes launching F12 will launch the F12 window behind the active Microsoft Edge window.
  • ADDED: Insiders with multiple monitors may encounter an issue where one of the monitors stops rendering (with the exception of the mouse). While rebooting will fix it, you can also resolve the issue via Settings > System > Display under the Multiple displays section, set it to only use the monitor that's functional, then set it back to "Extend these displays" and the issue should be resolved.
  • ADDED: Some Insiders are reporting getting an 0x80070228 error when attempting to download this build.

What's new in Windows 10 SDK Preview Build 15042:

  • No API changes have occurred since build 15021.
  • Windows SDK setup name change: With this release of the Windows SDK the setup executable name changed. If you have scripts designed to install the previous SDK, you will need to update the path to use the new name: WinSDKSetup.exe.
  • The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2017 RC here.

Known Issues Windows SDK:

  • DX12 Template Throws when running Build 15042: This is a known bug in the Windows SDK installer. If you encounter this issue, you can repair the SDK by simply running the following command from an Administrative command prompt: C:\program files (x86)\windows kits\10\bin\10.0.15042.0\x86\DismFoDInstall.cmd
  • Unable to deploy to device: If you are unable to deploy your app to a device or emulator, it may be because Windows IPOverUSB did not install correctly. To work around this issue:
    1. Open up the ISO
    2. Navigate into the WindowsSDK\Installers folder
    3. Double click on the file "Windows IP Over USB-x86_en-us.msi"
    4. Follow the prompts
  • Windows App Certification Kit crashes when launched from Visual Studio: If Visual Studio cannot deploy the app, the Windows App Certification Kit may crash when loading. To work around this issue:
    1. Launch the Windows App Certification Kit from the Windows shortcut
    2. Provide a pointer directly to the package to run the tests