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Can I Delete Unallocated SpaceHOT
How to Delete Unallocated Space [Three Efficient Ways]HOT
Conclusion HOT
About the Author
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Updated on Mar 28, 2025
Unallocated space is the space that does not belong to any partition in your computer and cannot be used. It has no programs to write files and data to the disk. Also, unallocated space is not automatically allocated to other partitions by the computer.
Many people may want to delete unallocated space to better use the disk. Can unallocated space be deleted? How should I delete unallocated space? This guide will take you to the detailed answers.
You can't delete unallocated space directly. Because no space exists in the operating system. You have nothing to delete. Fortunately, there are two ways to delete or remove unallocated space:
1. Create a new partition on the unallocated space
2. Extend the unallocated space into an existing partition
Once the unallocated space belongs to a partition, you can easily delete it if necessary. In both ways, you can make full use of the unallocated space. Let's see how to delete unallocated space with specific steps.
On Windows 10, you can delete unallocated space using Disk Management, the command line, or three-party software. You can choose a suitable solution. Here is a quick comparison of these three options.
Comparison | |||
---|---|---|---|
Complexity | Easy, just a few steps | Medium | Difficult, it requires commands |
Interface | Easy to understand | A little clear | Clutter without guidelines |
Suitable users | For every stage, including beginners | For experienced users | For advanced users |
Disk management and Diskpart are more suitable for users who are skilled with computers. EaseUS Partition Master, on the other hand, is a professional disk management tool with more powerful features and simpler operations. You can easily delete unallocated space even if you are not skilled in computers.
The following section will show you how to use these three methods to delete unallocated space. We'll talk about how to create a new partition and extend the unallocated space to the existing partition one by one.
Creating a new partition on unallocated space is a good way to remove unallocated space. Let's start with the simplest method.
EaseUS Partition Master is a versatile disk management tool that supports Windows 11/10/8.1/8/7 and Windows XP. It can easily create partitions and extend unallocated space that is not adjacent to each other. You can download the free software and try to delete unallocated partitions in Windows 10.
Step 1. Launch EaseUS Partition Master. To to Partition Manager, 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.
Disk Management is a Windows built-in tool that allows you to manage, partition, format, and partition your hard disks. Follow these steps to delete unallocated space using Disk Management.
Step 1. Hold "Windows+R" and type "diskmgmt.msc" to open Disk Management.
Step 2. Select the unallocated space. And right-click on it.
Step 3. Select "New Simple Volume." And follow the wizard to set the drive number, file system, and other settings.
Step 4. Click "Finish" to finish creating the partition on the unallocated space.
Diskpart will finish the creation and deletion of unallocated space in the form of a command line. When using Diskpart, you need to check the command carefully to avoid errors. To delete unallocated space, you need to create unallocated space first. Here are the specific steps to do so.
Step 1. Open the Run window and type "cmd" to open a command line window. And type "diskpart" and press "Enter."
Step 2. Input the following commands and press "Enter" when each command is completed.
list disk (you can see all the disks)
select disk 0 (0 refers to your disk number)
create partition primary size=x (x refers to the partition size)
assign letter=H (H is the partition letter)
format fs=ntfs quick (ntfs can be replaced with other file formats)
The three ways can also extend unallocated space into the existing partition. Let's look at how the three tool works to delete unallocated space by extending the unallocated space.
Follow the steps below to use EaseUS Partition Master to extend unallocated space:
Step 1. Locate the Target Partition.
Go to Partition Manager, locate the target partition and select "Resize/Move".
Step 2. Extend the Target Partition.
Drag the partition panel rightward or leftward to add the unallocated space into your current partition, or you can click click "fill in all unallocated" to allocate all space to the target partition. Then, click "OK" to confirm.
Extra Option: Get Space from Another Drive
If there is not enough unallocated space on your disk, right-click on a big partition with enough free space, select "Allocate space".
Then select the target partition that you want to extend at the allocate space to column.
Step 3. Execute Operations to Extend Partition.
Drag the dots of the target partition into the unallocated space and click "OK".
Then Click the "Execute Task" button and click "Apply" to keep all the changes.
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In addition to creating and extending unallocated space on unallocated space with EaseUS Partition Master, it also supports other operations on unallocated space.
Step 1. Open Disk Management and right-click the unallocated space.
Step 2. Click "Extend Volume" and follow the instructions to extend unallocated space into an existing partition.
Follow the steps below to extend the unallocated partition into existing partitions using CMD:
Step 1. Open the Run window and type "cmd" to open the command window.
Step 2. To extend the partition, type the following command and "Enter" in sequence.
diskpart
list disk
select disk 0
list partition
select partition 2
extend size =number
If you want to delete partitions using Diskpart, you can click the link below to learn detailed instructions.
How Do I Use DiskPart to Delete All Partitions in Windows?
Here this guide will assist you in cleaning up a drive for free using DiskPart. Here, besides deleting volumes, you'll also learn more command lines of creating, extending, formatting volumes with this utility.
This guide describes three ways to delete unallocated space. The unallocated space does not belong to any partition yet, so you can't delete it. You need to create a partition for the unallocated space or extend the unallocated space to an existing partition.
EaseUS Partition Master is powerful and easy to use. It can solve your problems with Disk Management and Diskpart on Windows. If you have other questions, please see the next section.
If you still have questions about unallocated space, please continue with the following questions.
1. Why I can't delete unallocated space?
Unallocated space is unused, it doesn't belong to any partition, and it doesn't have any data on it, so it can't be deleted. You can create a partition on the unallocated space or extend the unallocated space into an existing partition.
2. What happens if you delete unallocated space?
If you delete unallocated space, nothing happens because you can't delete unallocated space.
3. Why do I have so much unallocated space?
Because several situations can cause you to get unallocated space, such as:
Unallocated space is space that is not used. You can improve the utilization of an unallocated disk by recreating the partition or extending it to other partitions.
How Can We Help You
Updated 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.
Cici is the junior editor of the writing team of EaseUS. She accepted the systematic training on computers at EaseUS for over one year. Now, she wrote a lot of professional articles to help people resolve the issues of hard drive corruption, computer boot errors, and disk partition problems.
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Read MoreI 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.
Read MorePartition 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.
Read MoreIt 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.
Read MoreI 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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