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How to Delete Unallocated Space from Hard Drive/USB Drive/Memory Card?

Posted on Dec 25, 2017 by Jean to Partition Manager

Summary:
The empty partitions on your hard drive, USB or memory card are of no use at all, so do you know how to delete unallocated space completely in Windows 10/8.1/8/7/XP/Vista & Windows Server 2016/2012/2008? Here is the best solution for you.

Is unallocated space on a hard drive useless?

"I have a 1 TB Seagate external hard drive which is almost 2 years old. Today when I check the drive's storage in the Disk Management, I saw 65.76 GB storage displaying as Unallocated. How did this unallocated space come? What should I do with this unallocated space?"

What's unallocated space on a hard drive partition?

Supposing that you've formatted a hard drive or deleted a partition on an external hard drive, flash drive or memory card, there is unallocated space showing up. As is known to all, the hard drive partitions are coming with unique drive letters in Windows operating system and they are used to store data. Sometimes, people find that their hard drive, especially when a hard drive is not showing up as usual in the Computer area or File Explorer. In most cases, it's because the partition has been deleted or removed and became unallocated space.

When a hard drive partition or the whole hard drive becomes unallocated space (sometimes called free space) in Windows, it's no longer useful for Windows to write files or store data until it's converted to a real partition with a drive letter assigned to it. Simply deleting the unallocated space won't help, instead, you must use a proper way to fix unallocated hard drive space.

How to delete unallocated space and put it to a significant use?

The empty partitions on your hard drive, USB or memory card are of no use at all, so do you know how to delete unallocated space completely in Windows 10/8.1/8/7/XP/Vista & Windows Server 2016/2012/2008? In fact, you don't have to really delete it at all. There are two ways for you to make use of unallocated space on an HDD, external USB flash drive or memory card!

1. Create a new partition on the unallocated space
2. Add the unallocated space to an existing hard drive partition

Here's how you use EaseUS Partition Master Free to start the allocation job of unallocated space.

  • On your computer, install EaseUS free partition manager.
  • If you're seeing unallocated space on some external hard drives, use a hard drive enclosure to connect the external drive to the computer.
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 Windows 10 is supported

Guide: Create a partition with EaseUS Partition Master Free

Step 1. Right-click on the unallocated space and choose Create Partition.

choose create partition

Step 2. When the Create partition window pops out, you can enter a partition label, select a drive letter, cluster size, partition size, partition type (Primary/Logical) and file system from the pull-down menu. While creating a partition, you could also resize the new partition to a certain size.

edit the newly created partition

Step 3. Click OK, a new partition will be created.

Guide: Allot unallocated space to an existing hard drive partition with EaseUS Partition Master Free

Step 1. Drag the unallocated space next to an existing partition. For example, if you're seeing low disk space warning on C drive, you can move the unallocated space next to C drive.

Step 2. Next, you got three ways to allot the unallocated space to C drive.

  1. 1) Click the C drive and directly put your mouse pointer between the C drive and Unallocated space. When the mouse pointer turns double arrow, drag the end of C drive bar to extend until all the unallocated space has been added to it.
  2. 2) Right-click the C drive and choose Resize/Move partition.
  3. 2) Right-click the C drive and choose Merge partitions.

Step 3. Follow the simple wizard to complete the corresponding operation.

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 Windows 10 is supported