4 Ways to Fix Windows System Backup Failed in Preparing the Backup Image

Jean updated on Sep 07, 2020 to Backup Utility | How-to Articles


"There was a failure in preparing the backup image of one of the volumes in the backup set 0x807800c5."

Behind the given message, there is usually some additional information that supplements the failure, for example, 'the mounted backup volume is inaccessible. Please retry the operation (0x8078004F)', 'backup disk cannot be found', or 'the version does not support this version of the file format', etc.

there was a failure in preparing the backup image of one of the volumes in the backup set


Preparing the backup image failed with error code 0x807800c5 suggests a conflict of the identical folders named WindowsImageBackup. To put it more specifically, when you use Windows File History, the inbuilt Backup and Restore program in Windows 10, 8 and 7, to create a system image, you save the image to a WindowsImageBackup, and the folder is set to locate at a specified location, for example, volume E: that is with adequate unused space.

Some days later, you did another system backup, and try to save it to the same folder placed in the same location. Oops, system image backup failed error prompted, saying that there is a failure in preparing the backup image of one of the volumes...

Hence, in conclusion, the catastrophe is caused by obsolete backup files in the same partition.


After figuring out the reasons behind the error, we collect 3 most applied fixing methods to help work the problem out. They are given in an ascending order from easy to complex.

Method 1. Get another free system backup solution
Method 2. Rename the old backup folder
Method 3. Recreate a new partition or format drive for Windows system backup
Method 4. Delete the previous system restore point and turn on Windows system protection

Method 1. Get another free system backup solution

EaseUS Todo Backup has been serving as free backup software that enables Windows users to create a backup for operating system, files, folders, system drive, boot drive, data partition, and restore the backup image whenever the computer crashed, data inaccessible, disk formatted, Windows reinstalled. Best of all, it can be used as an instant remedy as soon as Windows Backup and Restore program failed to backup due to various error messages including preparing the backup image failure, or some other third-party backup utilities you're currently using encountered backup problems.

To get rid of the error message while creating system backup, download and install EaseUS Todo Backup, and follow the wizard to accomplish the system backup without hassle.

Step 1. Run EaseUS Todo Backup and choose "OS" to backup the current operating system on your computer.

choose system backup to backup os

Step 2. On the "System Backup" window, there are several options for you to backup OS intelligently.

  • Select a backup location - Click "Browse" to choose your own backup storage device.
  • Add a plan name and description - it's necessary when there are many similar backups in the same location.
  • Schedule - Click "Schedule" and you can set an auto OS backup task by daily, weekly...or upon an event.
  • Image-reserve strategy - manage your increasing OS backups in an organized way.
  • Backup options - to create an OS backup without taking too much disk space, enable OS backup encryption, etc.
make settings to the OS backup

Step 3. Click "Proceed" after making all necessary settings. 

Method 2. Rename the old backup folder

Step 1. Open the control panel in Windows 8 or 10, locate File History.

Step 2. Double click on the backup and restore program, you'll clearly see where your backup image is located. Follow the path and find the folder called WindowsImageBackup. e.g. the path is E:\WindowsImageBackup.

Step 3. All you need to do is to change the folder name to WindowsImageBackup.old. To distinguish it from the newly created backup.

Method 3. Recreate a new partition or format drive for Windows system backup

If the destination partition or target USB/external hard drive become inaccessible or corrupted, Windows system backup won't complete. In order to make the process to complete successfully, it's highly recommended to create a new partition or format the USB/external hard drive for Windows system backup.

Method 4. Delete the previous system restore point and turn on Windows system protection

Step 1. Press "Win + S" > Type System > Select "System".

Delete previous system restore point.

Step 2. Click "System protection" > "Configure" > "Disable system protection".

Turn off system protection and delete previous system image.

Step 3. Click "Delete" to delete previously created system restore points.

Delete previous system image to create new system image for Windows 10/8/7.

Step 4. Repeat step 1 > Click on "System protection" > "Configure".

Step 5. Select "Turn on system protection" > "Apply" > "OK".

After this, restart PC and you shall be able to createa Windows system in your PC again.

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Frequently Asked Questions

Why choose EaseUS Todo Backup?

"The easiest way to protect your data and system files."techradar

"EaseUS Todo Backup Free is one of the most popular free data backup applications available. This software offers a myriad of features and is extremely user-friendly. It provides a full system backup, meaning you can back up your entire operating system."TopTenReviews

"EaseUS ToDo Backup Home is a great backup program, well suited to the home and SMB space."PCWorld

What is the difference between Clone and Backup? In what cases should I use Clone?

Clone will copy one disk to another or one partition to another (unallocated space is also supported). Usually, this option is used to upgrade the current disk by creating an identical copy. Backup will generate a .PBD image file containing the selected files or system that can be restored from the .PBD image if needed.

What is the difference between System Backup and Disk Backup?

System Backup will auto-select the system boot related partition(s) as the backup source to make sure the system image can be restored properly. Disk/Partition Backup will allow you to manually select a whole disk or speficy a certain partition as the backup source. You will get the same backup result as System Backup if you manually select the system and boot partitions with the Disk/Partition Backup option.

As a computer newbie, what features should I use to protect my computer?

You can use System Backup to back up the system and boot partitions, use Disk/Partition backup to back up the data partition and add plans to run an automatic backup. If you use the computer frequently or have software that may cause boot failure of the computer, we would suggest you back up the computer every 1 to 2 days. For other situations, you can backup the computer once a week. In addition, you can schedule File Backup to back up the files which are changed frequently.

What kind of storage service should I use to save my backup images?

EaseUS Todo Backup can save backup images to internal disks, external disks, network drives, or free cloud(Google Drive, Dropbox, and OneDrive) and CD/DVD. It is suggested to save the images to the internal/external/network drives to save time as those kinds of disks have a better read-write speed. It is suggested NOT to save the image on the source disk, because once the disk is damaged, all the files on the disk will become unavailable and you will be unable to restore the image.

As a company network administrator, what features should I use to protect our internal computers?

It is recommended that you use the SQL Backup feature to back up your company's SQL server and Exchange Backup feature to back up the Exchange server. In addition, you can execute System Backup to back up the system and boot partitions on every computer and set a plan to execute the backup once a day or twice a week to ensure that the computer can be restored timely when it has boot issues. File Backup feature can be used to back up important user data. If there are a large quantity of computers, you can purchase EaseUS Backup Center to manage the backups on the client computers centrally.

About EaseUS Todo Backup

Be it a file, system, partition, or disk, EaseUS Todo Backup will help you back up or clone the item and provide you with multiple backup plans.