Software⏱️ 3 min read📅 2026-06-11

How to Fix 0x807800C5 Error – Windows Backup failed with error 0x807800C5

Windows Backup failed with error 0x807800C5, unable to create system image.

Quick Answer: Try cleaning the WindowsImageBackup folder and restarting backup. If issue persists, consider seeking further assistance from Microsoft technical support.

Windows Backup failed with error 0x807800C5, affecting users who have set up backup of their Windows 8 laptop with Windows 7 File Recovery (known as Backup and Restore in Windows 7). This issue can be frustrating, especially when trying to create a system image.

The error message indicates that the mounted backup volume is inaccessible or the specified backup disk cannot be found. In this troubleshooting guide, we will explore the root causes of this issue and provide step-by-step solutions to resolve the problem.

💡 Why You Are Getting This Error

  • The primary reason for this error is a corrupted or incomplete system image that was created during the backup process. This can occur due to various reasons such as power failures, disk errors, or incomplete data transfer. Additionally, if the backup location is not properly configured or has issues with its metadata, it can also lead to this error.
  • Another possible cause is a conflict between the Windows 7 File Recovery and the WD MyBookLive network location. The WD MyBookLive device may be experiencing issues that are preventing the system image from being created correctly.

✅ Best Solutions to Fix It

Method 1: Re-creating the System Image

  1. Step 1: Stop any ongoing backups and ensure that the backup location is disconnected from the internet.
  2. Step 2: Open Backup and Restore in Windows 7 and select 'Create a system image'. Select the drive containing the system image and click 'Next'.

Method 2: Repairing System Image

  1. Step 1: Open Command Prompt as an administrator and run the command 'chkdsk C:' (assuming C is the drive containing the system image). Follow the prompts to complete the check disk operation.
  2. Step 2: If the above step fails, try running the command 'chkdsk C: /r' to repair any corrupted files.

💡 Conclusion

To resolve the Windows Backup failed with error 0x807800C5 issue, it is recommended to re-create the system image using Method 1. If this method fails, try repairing the system image using Method 2. Additionally, ensure that the backup location and WD MyBookLive device are properly configured and free from any issues. By following these steps, users should be able to resolve the error and successfully create a system image.

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