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Here’s What to Do With Unallocated Space After Cloning

Updated on Dec 05, 2018 by Jean to Partition Manager

Summary:
Have confusions on the unallocated space after cloning HDD, SSD or migrating OS? Relevant answers are given in this post for how to deal with the empty space and make use of it as a storage drive.

About the unallocated space after cloning

"I see unallocated space after cloning a smaller HDD to a larger one. What's the matter? I feel so sure that there is no such unallocated space on the source disk. By the way, it's EaseUS disk clone software that I use."

Unallocated space after disk cloning issue is common, for whatever disk cloning software you were using. So, the questions about the unwelcome unallocated space are coming to various computer forums. People feel uncertain about where it was brought and how to get rid of the empty space that seems to be quite useless.

First of all, the unallocated space is never useless, it's part of your hard disk and shall put into significant use. Next, the answer to why you got such space is merely because you applied the sector by sector clone function while cloning a hard disk or partition. For example, EaseUS Todo Backup disk clone feature allows you to clone system files and partition tables sector by sector, byte by byte including the bad sectors if there were some. That's how you ended up with an exact copy of the original drive but meanwhile obtain some unallocated space.

How to make use of the unallocated space after cloning

By simply converting the unallocated space to a storage drive partition can save you out of trouble, and make full use of every byte on your cloned hard disk. In fact, if you're the ones who're looking for a piece of easy-to-use software to clone system to HDD/SSD, or upgrade hard drive from the small to large or from the old to new, EaseUS Partition Master is an ideal choice! It supports to edit the unallocated space after clone by merging it to the neighboring partition directly.

Nevertheless, no matter how you cloned the drive in the previous step, as long as you are currently confronted with the unallocated space issue, you can still ask help from EaseUS Partition Master. First, download the free partition manager on your PC, and go through the following two options to deal with the current issue.

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 Windows 10 is supported

Option 1: Create a partition on unallocated space

Notice:
If you want to create a partition on an empty USB, SD card or external hard drive, connect it to your PC in advance.
 

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".

Create partition on unallocated space

Step 2: Adjust the new partition size, file system, label, etc.

Set the size, partition label, drive letter, file system, etc. for the new partition and click "OK" to continue.

Set up new partition

Step 3: Confirm to create a new partition

Click on the "Execute Operation" button and confirm to create a new partition by clicking "Apply".

Confirm and keep all changes

Option 2: Add unallocated space to an existing partition

By extending the existing partition that next to the unallocated space, you can add the unallocated space to your partition and then put it into use. Here are the steps to do it:

 

Step 1: Launch EaseUS Partition Master

Run partition manager software

Step 2: Free up space to extend partition

If the hard drive has enough unallocated space to extend the target prtition, jump to Step 3 and continue.

If not, free up space first:
1. Right-click on a partition next to the target partition and select "Resize/Move".
2. Drag the partition ends to free up space, leaving enough unallocated space behind the target partition, click "OK".

Free up space to extend partition

Step 3: Extend partition

1. Right-click on the target partition and select "Resize/Move".

Resize target partition

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

Add space to the target partition

Step 4: Keep all changes

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

Keep all changes for extending partition