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Microsoft is now rolling out released build 15046 for PC to Insiders in the Fast ring. As part of this release, there’s a known issue that will affect a small percentage of users. Knowing this, we wanted to document the issue and share the workaround you may perform if you encounter this issue during the 15046 install. Please read below for details and further steps.

During the 15046 install, your PC may “hang” and become unresponsive at the Windows boot logo screen. During the start of the install, one of the required processes may initialize but not complete or timeout, thus causing the “hang”.

Workaround Steps

  1. Manually reboot your PC if it “hangs” at the boot logo during the first attempt to install build 15046
  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:Click Start
    Type Command Prompt
    Right-click Command Prompt (desktop app) in the results listSelect Run as Administrator
    Click Yes to confirm
  4. One line at a time, paste these commands into the command prompt window.  Press enter after each line:reg delete HKEY_LOCAL_MACHINE\system\setup\upgrade\nsimigrationroot /fnetsh int ipv6 set locality state=disablereg delete HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nsi\{eb004a01-9b1a-11d4-9123-0050047759bc}\28 /f
  5. Close the Command prompt window
  6. Reboot your PC
  7. Re-scan for updates and re-attempt the install

Completing these steps will allow you to proceed and install build 15046 as expected.

Update: With the release of build 15046 today, some users are now reporting error 80070228 while trying to download the new build. Microsoft acknowledges the problem and investigating this issue.

More fixes here.

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