Windows Update Error 0x80072C42

Windows update error 0x80072C42 is a common issue that can prevent your system from installing important updates. This error typically manifests as a message stating "There were some problems installing updates, but we'll try again later." While frustrating, this error is often solvable through a few troubleshooting steps.

What Causes Error 0x80072C42

Error 0x80072C42 usually indicates a problem with the Windows Update service itself. This could be due to corrupted system files, insufficient disk space, issues with your internet connection, or even conflicts with third-party software.

Affected Operating Systems

This error can occur on various versions of Windows, including:

  • Windows 10
  • Windows 8/8.1
  • Windows 7

Programs Often Experiencing the Error

While this error primarily affects the Windows Update system, other programs requiring an internet connection to function correctly might also be impacted. This includes online games, streaming services, and cloud-based applications.

How To Solve Errors

Before attempting any fixes, ensure your computer is connected to a stable internet connection. The following solutions can help resolve error 0x80072C42:

Run the Windows Update Troubleshooter

Windows includes a built-in troubleshooter designed to identify and fix common Windows Update problems. To access it:

  1. Press Windows key + I to open Settings.
  2. Navigate to Update & Security.
  3. Select Troubleshoot from the left pane.
  4. Click on Windows Update and then Run the troubleshooter.
  5. Follow the on-screen instructions.

Reset Windows Update Components

Resetting the Windows Update components can often resolve issues with the service:

  1. Open Command Prompt as administrator.

  2. Execute the following commands one at a time, pressing Enter after each:

    • net stop wuauserv
    • net stop cryptSvc
    • net stop bits
    • net stop msiserver

  3. Rename the SoftwareDistribution and Catroot2 folders:

    • ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
    • ren C:\Windows\System32\catroot2 Catroot2.old

  4. Restart the services in reverse order:

    • net start wuauserv
    • net start cryptSvc
    • net start bits
    • net start msiserver

Check Disk Space Availability

Insufficient disk space can prevent Windows from downloading and installing updates. Ensure you have at least 20GB of free space on your system drive. You can check this by going to File Explorer, right-clicking on the C: drive and selecting Properties.

Run System File Checker

Corrupted system files might be causing the error. The System File Checker tool can scan for and repair these issues. Open Command Prompt as administrator and type sfc /scannow.

Disable Antivirus Temporarily

Sometimes antivirus software can interfere with Windows Update. Try temporarily disabling your antivirus and attempting to update again. Remember to re-enable it afterwards.

Perform a Clean Boot

Performing a clean boot starts Windows with minimal drivers and programs, helping isolate potential conflicts. You can find instructions on how to perform a clean boot on the Microsoft website (https://support.microsoft.com/en-us/help/929135/how-to-perform-a-clean-boot-in-windows).

Update Drivers

Outdated drivers can sometimes cause compatibility issues with Windows updates. Check for and install any available driver updates from your computer manufacturer's website or through Device Manager.

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