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Error Code 4105/21: Not Enough Memory to Process This Command

Solution to Invalid parameter or Information Code: 4105/21 encountered when you create a backup or sync task with AOMEI Backupper.

Lily

By Lily Updated on November 12, 2025

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Table of Contents

This article applies to: AOMEI Backupper all versions.

Introduction

Sometimes, when you do the backup or sync operations, you will encounter the error code 4105 & code 21: Not enough memory to process this command.

Backup is initializing...

Backing up the information of storage device...

Backing up of the volume 0...

Backing up data...

Information Code: 4105

Not enough memory to process this command.

Solution

1. Please check if the memory of your computer is enough to perform the operations. If the memory is too small, please try to increase the memory and then retry the operation.

2. If it is doing the incremental backup and there are many incremental backup versions made, please run a full backup once and then continue to do the incremental backup.

3. If it is a file backup and the data is a little big, you might get this error too. We advise you to do Partition Backup to backup the data you want. Or you can also create several file backup tasks to backup.

If there is still any problem, please feel free to contact us.

Lily
Lily · Editor
Lily Green joined AOMEI in 2018 and has since become a professional in the areas of data protection and data transfer. She is committed to helping users protect their precious computer data and troubleshoot Windows system errors. She consistently stays vigilant about the latest trends in technology, guaranteeing that the given information aligned with the ongoing advancements in the field.