Understanding Error Code 0x80004073

Error code 0x80004073 is a common Windows error that typically indicates an issue with the system's ability to connect to or access online resources, especially those related to updates and security. Users encountering this error may see messages like "Windows cannot install required files" or "Installation failed: Error code 0x80004073."

What Causes Error Code 0x80004073?

Several factors can contribute to the emergence of error code 0x80004073. These include:

  • Connectivity Problems: A weak or unstable internet connection can hinder the system's ability to download necessary files.

  • Proxy Settings: Incorrect proxy settings can prevent Windows from accessing online servers.

  • Firewall Interference: Overly restrictive firewall settings may block communication required for updates and downloads.

  • Corrupted System Files: Damaged or missing system files crucial for update processes can trigger the error.

Affected Operating Systems

Error code 0x80004073 primarily affects Windows operating systems, including:

  • Windows 10
  • Windows 8
  • Windows 7

Programs Often Associated with This Error

This error frequently arises during:

  • Windows Updates: The most common scenario is encountering the error while attempting to install Windows updates.

  • Software Installations: Downloading and installing certain software applications may also result in this error.

Trying these solutions may help resolve the error code 0x80004073:

Run the Windows Update Troubleshooter

  1. Open Settings by pressing Windows key + I.
  2. Select Update & Security.
  3. Click Troubleshoot.
  4. Choose Windows Update from the list and run the troubleshooter.

Check Internet Connectivity

Ensure your internet connection is stable and reliable. Restart your router and modem if necessary.

Verify Proxy Settings

  1. Open Internet Explorer.
  2. Go to Tools > Internet Options.
  3. Select the Connections tab.
  4. Click LAN settings.
  5. Ensure that the "Automatically detect settings" option is checked, and uncheck any other proxy-related options unless you have a specific configuration requirement.

Disable Firewall Temporarily

Temporarily disable your firewall to see if it's interfering with the update process. Remember to re-enable it afterwards for security purposes.

Run System File Checker (SFC)

  1. Open Command Prompt as administrator.
  2. Type sfc /scannow and press Enter.
  3. Allow the scan to complete and fix any corrupted system files it detects.

Reset Windows Update Components

  1. Open Command Prompt as administrator.

  2. Execute the following commands one by one, pressing Enter after each:

    • net stop wuauserv
    • net stop cryptSvc
    • net stop bits
    • net stop msiserver
    • ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
    • ren C:\Windows\System32\catroot2 Catroot2.old
    • net start wuauserv
    • net start cryptSvc
    • net start bits
    • net start msiserver

This will reset the Windows Update components, potentially resolving conflicts.

Perform a Clean Boot

Performing a clean boot can help identify if third-party software is interfering with the update process. To perform a clean boot:

  1. Press Windows key + R, type msconfig, and press Enter.
  2. Go to the Services tab.
  3. Check the box for "Hide all Microsoft services"
  4. Click Disable All.
  5. Go to the Startup tab and click Open Task Manager.
  6. Disable all startup programs.
  7. Restart your computer and try installing updates again.

If the update works in clean boot, you can re-enable services and programs one by one to identify the culprit.

Remember that if these solutions don't resolve the issue, further troubleshooting or contacting Microsoft support may be necessary.

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