How to Clone a Small Disk to a Big One with Using All Space

Cloned HDD/SSD not showing full capacity? Learn how to clone a smaller drive to a larger drive without unallocated space left.

Lily

By Lily Updated on November 12, 2025

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Sometimes, when you clone a small disk to a larger one, however, the cloned disk will not increase in capacity. How to use the full capacity of the large target drive? There are two ways to accomplish this:

Method 1: Edit partitions during cloning

When you do the disk clone, you can click the "Edit Partitions" button.

Edit Partitions

You can select "Add unused space to all partitions" so that the destination disk partitions will be automatically resized to the entire disk, appropriate for the disk size.

Or you can use "Manually adjust partition size" to manually edit the destination partition size and location by dragging the slider bar.

Add Unused Space

Method 2: Extend target drive after cloning

After cloning, press Windows + X and select Disk Management. Right-click on the cloned drive and select Extend Volume.

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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.