Fix Windows 10 build 15042 update stuck at 0%, download fails and other issues

Microsoft Windows 10 Creators Update Insider preview build 15042 is now available for Fast Ring Insiders. However, many Insiders are now reporting issues with the latest insider build.

Insiders are reporting issues like error 0xC1900401, Windows Update build 15042 hung at “Initializing…” or download stuck at 0%. Also, users are facing no audio, high CPU/disk usage, and Edge crash issues after installing the new build. We have posted some workarounds for these issues here.

During the 15042 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 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: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 15042 as expected.

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Fix Windows 10 Insider build 15042 do not show up:

  1. Open Settings> Update & security>Windows Insider Program.
  2. Click the Stop Receiving Insider Builds button.
  3. Click the Need to stop getting Insider builds completely? link.
  4. Click Confirm.
  5. Click Restart Now.
  6. Once your computer restarts, open Open Settings> Update & security>Windows Insider Program.
  7. Click the Join the Insider Program button.
  8. Click Restart Now.
  9. After your computer reboots, open Settings> Update & security> Windows Update.
  10. Click the Check for updates button to force the download of the new build.

Error 0xC1900401 or “build not yet available”

When trying to download Windows Insider build 15042, you may see an error such as 0xC1900401, or a note that the build is not yet available for your device.

According to the Windows Insider team, there was a minor problem in the publishing pipeline. No manual efforts are required by Insiders. Insiders may scan for updates occasionally and as the update for your particular country/region is published, you will be able to download accordingly.

PC scans and Finds 15042 but appears to hang on “Initializing…”

Your PC scans and finds build 15042, but it appears to hang on “Initializing…” and doesn’t appear to begin downloading the build. Try below-posted workaround.

  • Click the Start button
  • Type services and launch the Services panel
  • Scroll to Windows Update
  • Right-click and select Stop
  • Restart your PC
  • Re-check for updates
  • The update should proceed as expected

You can also repeat this process with the Delivery Optimization service(below). If stopping the WU service doesn’t bypass the issue on the first attempt, please re-try and stop this additional service.

Fix Windows 10 Insider build 15042 download stuck at 0% issue:

If you fail to download Windows 10 build 15042 or your download stuck at 0% or at 95%, try the below-posted workaround.

  1. Click Start
  2. Type Services
  3. Open Services panel
  4. Scroll down to Delivery Optimization
  5. Right-click it, select Properties
  6. Change startup type to Manual
  7. Reboot PC
  8. Scan for updates (and see if the download progresses)

Go back in afterward and change the startup to “Automatic (Delayed Start)”

Fix Other Windows 10 Insider build issues:

Some users may hit a bug that has several possible symptoms. Each of these issues are caused by the same bug:

  • No audio
  • Continuous high CPU/disk usage.
  • Edge crashes when opening Settings inside the app.
Workaround:

To bypass this bug, please complete the following either the Quick OR Manual steps:

Quick steps:
  1. Open a command prompt
  2. Paste the following:

Rmdir /s %ProgramData%\Microsoft\Spectrum\PersistedSpatialAnchors

Shutdown /r

Manual steps:
  1. Open File Explorer
  2. Navigate to this folder:c:\ProgramData\Microsoft\Spectrum
  3. Select the “PersistedSpatialAnchors” folder and click Delete
  4. Reboot the PC

If you encounter a message saying “files are in use” while trying to delete the folder, reboot your PC and try again. You only need to complete these steps one time and the issue will be resolved.

Pause or Stop Insider Preview builds

If you want to skip build 15042, can pause Insider Preview builds by going to Settings > Updates & security > Windows Insider Program, clicking on “Stop Insider Preview builds”, and choosing “Pause updates for a bit”.

What’s new in Windows 10 PC build 15042

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