Error Code 4103: Failed to Write File

Solution for Error Code 4103: Failed to Write File.

AOMEI
April 7, 2021

This article applies to: AOMEI Backupper all versions.

Introduction:

In a few cases, when you choose to do a backup of any kind , you may encounter Error Code 4103: Failed to write file.

Backup is initializing...

Backing up the information of storage device...

Backing up of the volume 0...

Backing up data...

Backing up of the volume 0 done.

Backing up of the volume 1...

Backing up data...

Backing up of the volume 0 done.

Backing up of the volume 2 (C:)...

Information Code:4103

Failed to write file.

Solution 1:

Please check items below:

1. Check if your destination location has enough space to perform a backup.

2. Check if you have sufficient permission to read/write to the destination location.

3. Check if your destination disks have bad sectors.

4. When you are doing the backup operation, you may shut down any other threads which are accessing the directory whereof this destination.

5. Please make sure you hook your external disks up.

6. Please check if the external drive is disconnected or its’ drive letter is changed when you back up to an external drive. Please reconnect the external drive with the same drive letter as the target path.

7. Or, the NAS is disconnected because the unstable network or user account is changed when you back up to NAS. Please delete the NAS.xml file under C:\ProgramData\AomeiBR, and then reconnect the NAS via typing into IP address.

Solution 2:

If you failed to back up to NAS/Share(network drive), please make sure your network is in good condition. Or you can map the NAS/Share(network drive) as a local drive in Windows (it applied to v3.2 and lower versions). You can refer to the screenshot below to map your network folder.

After mapping the folder successfully, then you can back up to the directory of the network folder just like backing up to a local location.

If there is still any problem, please feel free to contact our AOMEI Support Team.