The most consistent cause is corrupted Windows Update components such as the SoftwareDistribution or Catroot2 folders. Another confirmed reason is a misconfigured registry key, particularly when UseWUServer is enabled and pointing to an unavailable WSUS instance. Now that you know the main causes, let’s go through some fixes that can help in solving this error.
1. Run SFC and DISM Scans
Corrupted system or Windows update files can cause update failures. Running the System File Checker (SFC) and Deployment Image Servicing and Management (DISM) utilities can help repair and restore corrupted files. SFC scans for and replaces corrupted system files, while DISM can fix system issues and add updates or drivers.
2. Reset All Windows Update Components
If repairing system files didn’t solve the issue, a persistent bug may be stopping the Windows Update Troubleshooter from working. Resetting these services forces Windows to refresh them and renew any files that may have become corrupted.
3.1. Reset Windows Update with the WU Reset Agent
3.2. Reset Windows Update Using Command Prompt
3. Perform a Repair Install or Clean Install
If none of the basic troubleshooting methods work, it’s possible that your system is facing deeper corruption or configuration issues that prevent critical components from functioning correctly. In such cases, reinstalling Windows is often the most effective solution. You can either:
Repair Install (in-place upgrade) – This allows you to reinstall Windows without deleting your personal files, apps, or settings. It refreshes all core system files while keeping your data intact. To proceed, follow this repair install guide.Clean Install – This completely erases your current setup and installs Windows from scratch. It removes all data and applications, so make sure to back up your files beforehand. For detailed instructions, refer to this clean install guide.
