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Fix Cloned Hard Drive Not Showing Full Capacity Like an Expert [Beginners' Guide]

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Updated by Oliver on Apr 09, 2024
Written by Tracy King

The reason that caused 'Cloned hard drive not showing full capacity' is straightforward. It happened because users cloned a small-sized disk to a larger new disk drive and the error occurred. When this error appears, calm down and do not worry, as the methods to eliminate this issue is easy and efficient.

Note: Provided methods also work to fix: SSD Not Showing Full Capacity After the Clone issue.

Cloned hard drive not showing full capacity cover

Cloned Hard Drive Is Not Showing Full Capacity. How Do I Fix It

I had cloned an SSD with about 5 partitions from another HDD. The boot was not working, so I re-did the boot and Windows partitions with Clonezilla.

Along the way, I got distracted or misclicked during the setup, I ended up with 2 partitions, with only 465 GB out of the total 2 TB.

I tried using diskpart to shrink/expand the partition but can't get past the 465 GB. Disk Manager only shows the disk as 465 GB and no extra unallocated space. The SSD is a SATA Teamgroup; the HDD was a WD. Another thing I noted is that the SSD shows the label in properties as if it was the HDD (which is 1 TB, so it is messed up it shows 465 GB)

Tried EASUS and Mini partition wizard to fix using the same method and re-sizing, extend/shrink partition but it was no different than using diskpart of disk management.

Any ideas on how to fix this?

Edit: I also formatted the SSD, which still shows the wrong size. I pretty much gave up on the data as I would re-clone the HDD after fixing the SSD. from Reddit

So, if you are facing a similar problem as stated above, follow this tutorial and effectively use your hard drive space on this page.

Given below are the possible methods and follow a suitable guide to learn how to get rid of this issue:

Methods Complexity Level Why use It

EaseUS Partition Master🏅

Easiest Windows beginners and professionals
Disk Management Medium Experienced users
Diskpart CMD High Advanced users

1] Make Full Use of Disk Capacity with EaseUS Partition Master

The primary reason why a hard drive does not show its full capacity after cloning is that the disk cloning software or disk owner themselves forget to adjust the disk layout as auto-fit. Then, the disk is cloned the same as the source disk; extra free space is left unallocated on the target disk.

So, you can use the EaseUS Partition Master for help, as this software allows people to flexibly make full use of the free space on the cloned disk by extending the volume or creating a new partition on the drive.

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Download the EaseUS Partition Master and follow the respective guide to accomplish the operation and eliminate this issue with just a few simple clicks.

#1. Extend Volume with Unallocated Space

Step 1. Shrink partition to free up space to extend partition.

If the hard drive has enough unallocated space to extend the target partition, jump to Step 2, and continue. If not, free up space first:

  • At the Partition Manager section, right-click on a partition next to the target partition and select "Resize/Move".
  • Drag the partition ends to free up space, leaving enough unallocated space behind the target partition, click "OK".
free up disk space to get unallocated space

Step 2. Extend the target partition.

Right-click on the target partition you want to extend and select "Resize/Move".

extend partition -1

Drag the target partition handle into the unallocated space to extend partition.

extend partition -2

Step 3. Keep all changes.

Click the "Execute Task" button and click "Apply" to keep all changes.

extend partition -3

If you love this method and now your disk is displaying full size on your PC, share this tool to help more people online:


#2. Create New Simple Volume with Unallocated Space

Step 1. Launch EaseUS Partition Master. On the main window, right-click on the unallocated space on your hard drive or external storage device and select "Create".

Step 2. Adjust the partition size, file system (Choose the file system based on your need), label, etc. for the new partition and click "OK" to continue.

Step 3. Click on the "Execute 1 Task(s)" button and create a new partition by clicking "Apply".

Watch the following video tutorial and learn how to create a partition in NTFS, FAT, or EXT file system.

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2] Use Full Capacity of the Cloned Disk with Disk Management

Windows Disk Management is a Microsoft Windows software application that provides a graphical interface for disk management. It is used in computer systems to manage disk drives and partitions. The primary purpose of disk management is to optimize disk space usage and system performance.

So, you can use Disk Management to unallocated space in the target disk to extend a neighbor volume. Follow the guide given below to accomplish the operation:

Step 1: Press the Windows + R keys, type diskmgmt.msc, and click "OK".

Step 2: Right-click the partition in the Disk Management window and select "Extend Volume" from the context menu.

Extend partition

Note: If the Extend Volume option is grayed out on your PC, skip this method and move on to the next one to extend your disk drive's volume.

Step 3: Click Next and select the cloned disk.

Step 4: Modify the space where you want to increase the desired volume. Select Next > Finish. Adjust the space you wish to use to increase the desired volume.

If you tend to extend a non-adjacent volume with unallocated space, use the EaseUS Partition Master tool for help. Also, you can share this manual method to help some advanced users online:


3] Extend Cloned Disk to Full Capacity with Unallocated Space via CMD

Are you familiar with Windows computing skills? If so, you can use Command Prompt or CMD DiskPart to extend the unallocated disk space with command lines. It is a command-line tool for managing volumes, virtual hard disks, partitions, and disks. You can use certain command lines to manage volumes, partitions, etc. Follow the steps given below:

Step 1: Press the Windows key + R, type diskpart, and click OK.

Step 2: In the DiskPart window, copy and paste the command lines given below and press Enter after typing each command line:

  • list disk
  • select disk X (x refers to the target cloned hard drive, e.g., select disk 2.)
  • select partition X (replace x with the disk number you want to shrink its volume, e.g., select partition 2)
  • extend desired=X (replace x with the amount of space you need to extend in MB, e.g., extend desired = 100)

Extend Partition

So, this is how to extend the target disk with unallocated space via Command Prompt diskpart.

Tips to Prevent Cloned Disk from Not Showing Full Capacity Issue

I want to remind everyone to follow the necessary tips given below to avoid the cloned disk from not showing full capacity issue again:

  • ✔️Turn to reliable disk cloning software that allows auto-fitting disk space while cloning, regardless of cloning from a smaller disk to a bigger drive or from a bigger disk to a smaller one.
  • ✔️Use EaseUS Partition Master as it has a Disk Clone feature available as a reliable tool for help.

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  • ✔️Do not disturb or interrupt the cloning operation, close all background apps, and stop using any files or data inside the source disk during the cloning process.


So, in this article, you will find answers to how to fix the issue of a cloned hard drive not showing full capacity. To sum up, you can utilize the built-in tools in Windows, such as Disk Management and Command Prompt to extend the partition volumes.

The issue of cloned hard drives not showing full capacity is not complex, and people can fix it like an expert.

If the two fixes mentioned above do not work for you, you can use the EaseUS Partition Master tool as the easiest solution to help you eliminate this error on all Windows computers.

FAQs About Cloned Disk Not Showing Full Capacity

Ask people to follow and find answers if they have further questions about this issue:

1. Why does a cloned hard drive have unallocated space?

If you use specific cloning software to clone a hard drive to a larger disk drive, the excess space that exceeds the size of the original hard drive may be recognized as unallocated.

2. How can I use the full capacity of my cloned hard drive

You can use the full capacity of your cloned drive via Disk Management. Follow the steps given below:

  • Open Disk Management and select the volume to extend. You can see the storage devices linked to your computer in Disk Management.
  • Select how much space you want to extend, click "Next", and follow the on-screen instructions to complete the process.

3. Can I safely clone a disk drive and make full use of the capacity of the target disk?

You can safely clone a disk drive and use the target disk's capacity via EaseUS Partition Master. This software can add unallocated space to its partition, which is useful when you want to expand the storage space.

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About the Author

Updated by Oliver

Oliver is an EaseUS professional writer who dares explore new areas. With a passion for solving tech issues with straightforward guides for common users, Oliver keeps honing his writing craft by developing in-depth solutions for disk and partition management, computer boot-up issues, file transfer, etc.

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Written by Tracy King

Tracy became a member of the EaseUS content team in 2013. Being a technical writer for over 10 years, she is enthusiastic about sharing tips to assist readers in resolving complex issues in disk management, file transfer, PC & Mac performance optimization, etc., like an expert.

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Product Reviews

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  • I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes. I also think the overall look and feel of EaseUS Partition Master Free makes whatever you're doing with your computer's partitions easy.

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  • Partition Master Free can Resize, Move, Merge, Migrate, and Copy disks or partitions; convert to local, change label, defragment, check and explore partition; and much more. A premium upgrade adds free tech support and the ability to resize dynamic volumes.

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  • It won't hot image your drives or align them, but since it's coupled with a partition manager, it allows you do perform many tasks at once, instead of just cloning drives. You can move partitions around, resize them, defragment, and more, along with the other tools you'd expect from a cloning tool.

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