How to fix KB5034215 fails to install in Windows 11?

Issue: I can't install KB5034215 in Windows 11. This happened for the first time since I joined the Insider program back in last February. Any tips would be appreciated.

Solved Answer

Windows updates are important because they often contain important security patches and bug fixes that protect your computer from hacking and malware attacks and help your computer's operating system and software work efficiently. It may also contain new features and improvements to improve your computer's performance and user experience.

Microsoft typically releases updates on the second or third Tuesday of each month, covering a range of update types such as feature, cumulative, and security updates, each identified by a unique KB (Knowledge Base) number. Additionally, Windows Insiders can also install Preview builds that allow them to test the latest features and improvements, getting ahead on a public release.

KB5034215 is one of the Preview builds that was released on January 11, 2024, for those willing to test. It included new features, improvements, and fixes to the existing ones. Improvements were made to several features, including Windows Share, Microsoft Store, and Lockscreen.

Unfortunately, KB5034215 is failing to install for some people, complicating things. Usually, users simply have the updates installed in the background, so there is nothing to worry about. But when updates do not install properly, users are notified and sometimes an error code is displayed.

While there could be many reasons why KB5034215 fails to install on Windows 11 (corrupted system files, bugged caches, insufficient storage, internet connection problems, third-party software, etc.), there is no universal solution for all, so we provided numerous methods you can try below.

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How to fix KB5034215 fails to install in Windows 11?

Fix 1. Run Windows update and network adapter troubleshooter

This solution involves using built-in troubleshooters in Windows to detect and resolve issues related to Windows updates and network connections. The Windows Update Troubleshooter can identify and fix problems preventing updates from installing, while the Network Adapter Troubleshooter can resolve network issues that might be hindering the update process.

  • Type troubleshoot in Windows search and press Enter or go to Start > Settings > System > Troubleshoot.
  • From the list of Options, pick Other trouble-shooters.
  • Scroll down to locate the Windows Update and click Run.
  • After that, run the Network adapter troubleshooter.
  • Wait for it to finish, then apply changes and reboot the system.

Troubleshooter

Fix 2. Perform Disk Cleanup

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Free up space on your hard drive, which is necessary for installing updates. It removes temporary files, system files, and other unnecessary data that can take up space.

  • Type Disk Cleanup in Windows search and hit Enter
  • If your Windows is installed on drive C, pick it from the list (should be by default) and press OK
  • Click Clean up system files
  • Select your main disk again and click OK
  • Here, select the largest portions of the data used – these typically include Temporary Internet Files, Windows Update, Temporary Files, Recycle Bin, Delivery Optimization Files, and others.
  • Click OK and wait for the cleanup process to finish.

Disk Cleanup

Fix 3. Try Clean Boot

Starting Windows with a minimal set of drivers and startup programs can help identify if third-party software, especially security software, is causing conflicts with the update.

  • Type msconfig in the Windows search bar and open System Configuration.
  • Go to the Services tab and tick the Hide all Microsoft services checkbox.
  • Select Disable all.
  • Go to the Startup tab and click Open Task Manager.
  • Here, right-click on each of the non-Windows entries and select Disable.
  • Close down the Task Manager.
  • Go to the Boot tab and tick the Safe boot option.
  • Restart your computer.

Clean Boot

Fix 4. (Re)start relevant services

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Restarting certain Windows services can resolve issues related to Windows Update. This includes services like Windows Update Service and Background Intelligent Transfer Service (BITS).

  • In Windows Start search, type in Services and press Enter
  • When the new window opens, scroll down a bit to find Background Intelligent Transfer Service (BITS)
  • If the service is already running, right-click and select Restart
  • Otherwise, double-click the service and select Automatic under the Startup type
  • Click Start, Apply, and OK
  • Do the same with the Windows Update and Cryptographic services.

Services

Fix 5. Reset Windows update components

Resetting Windows Update components involves stopping services related to Windows Update, clearing the update cache, and then restarting the services.

  • Open Command Prompt as an administrator.
  • Stop the BITS, Cryptographic, MSI Installer, and Windows Update Services by typing the following commands and pressing Enter after each:
    • net stop wuauserv
    • net stop cryptSvc
    • net stop bits
    • net stop msiserver
  • Rename the SoftwareDistribution and Catroot2 folders by typing the following commands and pressing Enter after each:
    • ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
    • ren C:\Windows\System32\catroot2 Catroot2.old
  • Restart the BITS, Cryptographic, MSI Installer, and Windows Update Services by typing the following commands and pressing Enter after each:
    • net start wuauserv
    • net start cryptSvc
    • net start bits
    • net start msiserver
  • Close the Command Prompt and restart your device.

Reset update components

Fix 6. Run SFC and DISM

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Running certain commands via an elevated Command Prompt can repair corrupted system files and restore the health of the Windows image, which can be crucial for successful updates.

  • Type cmd in Windows search
  • Right-click on the Command Prompt search result and select Run as administrator
  • UAC (User Account Control) will ask whether it can make changes, click Yes
  • In the Command Prompt window, paste the following command and press Enter:
    sfc /scannow
  • Wait for the scan to complete.
  • Once the SFC scan is finished, run the following set of DISM commands, pressing Enter after each one:
    DISM /Online /Cleanup-Image /CheckHealth
    DISM /Online /Cleanup-Image /ScanHealth
    DISM /Online /Cleanup-Image /RestoreHealth
  • After completing the DISM commands, restart your computer.

SFC and DISM

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About the author
Gabriel E. Hall
Gabriel E. Hall - Passionate computer expert

Gabriel E. Hall is an expert troubleshooter who has been working in the information technology industry for years.

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