How To Fix Install Error 0x80070103 On Windows 11?

To fix the Windows 11 installation error 0x80070103, follow these general troubleshooting steps based on the provided resources:

1. Enable TPM: Ensure that TPM 2.0 is enabled in your system's BIOS or UEFI settings. Navigate to the Security section within BIOS/UEFI and locate the TPM option. Enable it if it isn't already.

2. Disk Space: Verify that your system has adequate free disk space for the installation. Using File Explorer, navigate to 'This PC', then 'Computer' or 'Devices and drives'. Look for the system drive and its available capacity.

3. Unplug External Storage: Disconnect any external hard drives, USB drives, or SD cards before attempting the installation.

4. Run Windows Update Troubleshooter: Launch the Windows Update Troubleshooter by navigating to Settings > Windows Update. Click Troubleshoot to diagnose potential issues related to updating Windows.

5. Scan for Malware: Perform a full system scan for viruses or malicious software that might hinder the installation process.

6. Install Critical Updates: Confirm that all critical updates are installed prior to proceeding with the Windows 11 installation. Visit Control Panel\Programs\Programs and Features to manage updates.

7. Repair System Files: Attempt to restore and repair system files using the Deployment Image Servicing and Management tool (DISM):

   • Search for Command Prompt and open it.
   • Execute the following commands:

     1. DISM.exe /Online /Cleanup-image /Restorehealth
     

   - Reboot the system afterwards.
   

If none of these steps work, consider performing a clean installation of Windows 11 rather than an upgrade, especially if you suspect compatibility issues or a potentially corrupted installer file. Refer to official documentation for detailed instructions on performing a clean installation of Windows 11.