Troubleshooting Error 0x803c0103 in Windows Update Troubleshooter

Imagine you’re trying to install an important update and an unknown error appears on your screen. You open Windows settings to run the Update Troubleshooter, hoping that the problem will be fixed as soon as possible, but the program that’s supposed to fix the problem produces the error code itself. This can be frustrating, and we get it.

Recently, several users reported an error code 0x803c0103 appearing on the screen when trying to run a scan with the program. We investigated the problem and found that this error can be caused by various reasons, including corrupted system files.

If you have encountered a problem like this, you have come to the right place, as this guide will walk you through the troubleshooting process in detail.

What is the cause of error 0x803c0103?

Windows Update stuck in suspended state: A less common scenario causing this problem is that the Windows Update service is stuck in a suspended state. In this case, you can solve the problem by resetting all Windows Update components with a special agent or by doing it manually via Advanced CMD.

System file mismatch: one of the most common causes of this problem is a system file mismatch that affects the Windows Update feature or troubleshooter. In this case, you can most likely fix the problem by running SFC and DISM scans to fix corrupted operating system data. In more severe cases, a repair or repair installation may be required.

How to troubleshoot error 0x803c0103?

Perform ‘Reset this PC’

  1. Press the Windows + I key to open the Settings application.
  2. Open the Update and Security section.
  3. In the left pane, select Restore.
  4. Under Reset this PC, click Start.
  5. Save your files and start the restore process.

Run SFC and DISM

  1. In the Windows search bar, type cmd.
  2. Right-click Command Prompt and run it as administrator.
  3. At the command prompt, type sfc/scannow and press Enter.
  4. Then type the following command and press Enter each time:
    DISM /online /cleanupimage / ScanHealth
    DISM /online /cleanupimage /RestoreHealth
  5. When the process is complete, restart the computer.

Using the downloadable troubleshooter

  1. Download the Windows Update Troubleshooter.
  2. Right-click on the tool and run it as an administrator.
  3. Follow the instructions and restart your PC after fixing the problem.

Frequently Asked Questions

  1. Write down your steps.
  2. Write down your error messages.
  3. Always check your cables.
  4. Reboot your computer.

  1. Run SFC and DISM.
  2. Reset the update services.
  3. Use the downloadable troubleshooting tool.
  4. Reboot this computer.

  1. Make sure you have enough memory on your device.
  2. Run the Windows update multiple times.
  3. Check for third-party drivers and download any updates.
  4. Disable any additional hardware.
  5. Check the Device Manager for errors.
  6. Uninstall third-party security programs.
  7. Fix the hard drive errors.
  8. Perform a clean Windows reboot.

  1. Run the Windows Update troubleshooter.
  2. Restart the services related to Windows Update.
  3. Run the System File Checker (SFC).
  4. Run the DISM command.
  5. Temporarily disable your antivirus program.
  6. Restore Windows 10 from a backup.

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