Error Code 4120: Failed to adjust partition size

This article applies to: AOMEI Backupper all versions.

Introduction:

Sometimes when you clone from a large drive to a smaller drive, you may encounter error code 4120:

Clone is initializing...

Checking volumes...

System cloning...

Information Code: 4120

Failed to adjust partition size.

Solutions:

Method 1, Delete all partitions on the target drive and clone again.

Method 2, Edit the size of partition manually before starting clone, then click “start clone”.

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