The error code 0x8007042B - 0x4000D indicates that the installation failed during the SECOND_BOOT phase due to an error in the MIGRATE_DATA operation. This often suggests that there is an issue with data migration during the upgrade process.
Here are some steps you can take to troubleshoot and potentially resolve this issue:
- Analyze Log Files: Review the setup logs, particularly
setupact.logandsetuperr.log, to identify any specific errors or warnings that could provide more context about the failure. Look for timestamps and error codes that might help pinpoint the issue. - Check Disk Space: Ensure that there is enough disk space available on your system drive. Insufficient disk space can lead to migration failures.
- Run Windows Update Troubleshooter: Use the built-in Windows Update troubleshooter to detect and fix issues related to Windows Update.
- Disable Third-Party Software: Temporarily disable any third-party antivirus or disk encryption software, as these can interfere with the upgrade process.
- Perform a Clean Boot: Boot your system in a clean boot state to eliminate software conflicts that might occur during the upgrade.
- Use the Media Creation Tool: If the above steps do not resolve the issue, consider using the Media Creation Tool to perform an in-place upgrade. This can sometimes bypass issues encountered during the regular update process.
- Backup and Reset: As a last resort, back up your data and consider resetting your PC or performing a clean installation of Windows 11 if the upgrade continues to fail.
Following these steps should help you address the upgrade issue you're experiencing.