How to Delete Unallocated Space Windows 10 [Three Efficient Ways]

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.

Can I Delete Unallocated Space

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.

How to Delete Unallocated Space [Three Efficient Ways]

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.

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.

Guide 1. Create a New Partition on Unallocated Space

Creating a new partition on unallocated space is a good way to remove unallocated space. Let's start with the simplest method.

Method 1. Create a New Partition with EaseUS Partition Master

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. 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.

Method 2. Create a New Partition with Disk Management

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.

Method 3. Create a New Partition with Diskpart

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.

Guide 2. Extend Unallocated Space into Existing Partition

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.

Method 1.  Use EaseUS Partition Master to Extend Unallocated Partition

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 and 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.

Method 2.  Use Disk Management to Extend Unallocated Partition

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.

Method 3. Use Diskpart to Extend Unallocated 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.

If you want to delete partitions using Diskpart, you can click the link below to learn detailed instructions.

Conclusion 

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.

FAQs About Delete Unallocated Space

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:

• Initializing a disk
• Deleting a partition
• Misuse or virus attack

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.