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How to Allocate A Hard Drive Windows 11? 2 Simple Ways

Facing the problem of how to allocate a hard drive Windows 11 is common if you are running low on disk space. In the further parts of this post, you will get to read about everything about allocating free space in Windows 11. So, make sure that you read it through to the end.

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Updated by Oliver on Apr 09, 2024
Written by Tracy King
  • Duration: 5-10 minutes
  • Applies to: allocate space on hard drives, SSDs, etc.
  • Supported OS: Windows 11/10/8.1/8/7, Windows XP/Vista, and Windows Servers

You may encounter a situation while using your Windows 11 PC or laptop with the hard drive not well-partitioned and facing the problem of "low disk space" on their system drive or other drive partitions. Don't panic.

To fix this issue, you can simply allocate a hard drive in the Windows 11 PC or laptop to get a larger capacity in target volume and better use your disk storage space.  It is a procedure of separating a physical hard disk unused space into independent drive partitions.

In the coming parts of the post, you will get detailed information on common reasons to allocate free space in Windows 11 and some easy ways to solve the issue of how to allocate a hard drive in Windows 11. So, let's start right in!

Workable Solutions🎯 Fees💵 Duration⏲️ Complex Level🧰

#1. Allocate Hard Drive Space with Software - EaseUS Partition Master🏆

$19.95 1-2 minutes Easy
#2. Allocate Disk Space via Disk Management $0 5-10 minutes Complex

The provided methods here also work to fix the following issues:

How to Allocate Hard Drive Space Windows 11 With EaseUS Partition Master

  • 🎉 Benefits: No data loss, easy and simple to use.
  • 👥 Suitable user: Windows beginners
  • 🧰 Tools: Hard drive, Windows 11 computer, partition manager software - EaseUS Partition Master.

The best and easiest way to fix disk space insufficient errors is to allocate hard drive space in your partitions. EaseUS Partition Master, with its Allocate Space feature, can assist you in redistributing free partition space on hard drives in Windows computers without requesting file deletion or partition removal.

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You don't require to have expert-level skills to be able to use this tool. Take the following steps to allocate free space on your Windows PC now:

Step 1. Right-click on the D: partition with enough free space and select "Allocate Space".

Select partition to allocate space

Step 2. Select the target partition - C: drive and drag the partition panel rightward to add the free space from D: drive to C: drive. Then click "OK" to confirm.

Allocate space to extend partition

Step 3. Click the "Execute Task" button and click "Apply" to start the process of moving free space from D: drive to C: drive.

finish extending partition

If you followed this guide and successfully reallocated your disk drive space to the target volume on Windows 11, feel free to share this method to more friends around you online now:


Bonus Features of EaseUS Partition Master You May Also Like:

EaseUS Partition Master is that it is a reliable disk partitioning tool that is trusted by more than 60,000,000 users all across the globe. Aside from allocating disk drive space, you can use this software to manage your computer drive and optimize disk performance with the following features: 

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How to Allocate Hard Drive Free Space with Disk Management

  • 🎉 Benefits: No software installation.
  • 👥 Suitable user:  experienced Windows users
  • 🧰 Tools: Hard drive, Windows 11 computer, Disk Management

Disk Management is the tool in Windows that can help you to allocate free space to another partition. However, the limitation of this method is that there must be unallocated space next to the partition which you want to resize. Here are the details:

  • If there is unallocated space next to the partition, you'll need to select the "Extend Volume" option.
  • If there is no unallocated space on the hard drive, you need to delete an adjoining partition with enough free space and get unallocated space to allocate to extend the target drive.

To solve the issue of how to allocate a hard drive Windows 11 with Disk Management, check out these practical instructions:

Step 1: Press the "Windows + R" keys together to open the "Run" window.

run box win11

Step 2: Type "diskmgmt.msc" to open the Disk Management window.

Step 3: If there's unallocated space next to the partition, right-click on that partition and choose the "Extend Volume" option.

choose the extend volume option

Step 4: If no allocated space is there on the hard drive, you'll need to delete its contiguous partition to get unallocated space. For this, click on the "Delete Volume" option. Make sure to back up the partition before deleting it to secure the data.

click on delete volume option

Learn Also: 

Here is a similar tutorial that clearly guide you to allocate space to another partition on older Windows computers. Follow to learn the details if you are interested.

Why and When Allocate Free Space in Windows 11 

Here are two common cases that most Windows users would ask about how to allocate disk drive space in Windows computers flexibly:

Case 1: A year ago, when I set up my computer, I had properly partitioned the hard disk. I thought I had left sufficient memory for the system drive. But, with usage, increase in creating files, and downloading different programs, my computer is now showing a low disk space error on my hard drive. I don't wish to replace my hard drive with a new one altogether. Please suggest to me how to allocate a hard drive Windows 11? Thanks in advance.

Case 2: How do I allocate my new hard drive on Windows 10? - from Quora

It doesn't matter if you are unsure about why and when you should consider reallocating the disk drive space. Check the tips here and if you are with 2 or more listed situations, revert to the above tutorial and make use of your disk space immediately:

  • Insufficient disk drive space: You are running low on your hard drive, and you are not able to download and install important Windows updates, files, or other programs.
  • Run different OS on one PC: You want to run two different operating systems on your Windows 11 PC or laptop, it is necessary to have several partitions on your system so as to separate two OSes on different volumes.
  • Decreases the risk of data loss: You will have independent partitions for the operating system and other personal data if you have allocated free space on your hard drive. With this, you will be able to keep your files in a safe manner. It will also decrease the risk of data loss if the system requires reinstallation of an operating system
  • Better organization of data: Once you allocate free space in a hard drive, you can organize your data more precisely in an excellent organized manner. It will also let you get more space with external storage, and you won't get any storage and organization issues because of low disk space
  • Use unallocated space: You can allocate free space on a hard drive when you wish to make full use of the space you have by allocating the unallocated space on the drive to the existing partition


With this, how to allocate a hard drive Windows 11 will become a hassle-free task for you. You can utilize the Disk Management tool to allocate free space on the hard drive, but you may need to delete its data. However, with EaseUS Partition Master, there is no requirement to delete the partition of your data. Thus, to make things convenient and quick, make sure that you try your hands on this professional and trusted tool.

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FAQs on Allocating a Hard Drive in Windows 11

Here are some hot topics that are related to allocating disk drives, if you are interested, follow and find answers here:

1. Should I allocate my hard drive in Windows 11?

If your Windows 11 is preinstalled with 1 hard drive with only 1 partition - the system C drive, and you want to separate your personal data from the OS booting files, it's wise that you repartition the hard drive and allocate enough space to store your personal or work data. For a step-by-step guide, follow this page for help: How to Partition Hard Drive

2. How do I allocate my new SSD in Windows 11?

You can either use Disk Management or third-party partition manager software to allocate SSD disk space in Windows 11. For Windows beginners, I personally recommend you turn to reliable disk partitioning software like EaseUS Partition Master for help. It's easy and efficient in partitioning and allocating disk space. Revert to Method 1 on this page, you can adjust your SSD disk space as you want.

3. How do I partition my hard drive for Windows 11?

If you have a new hard drive, you can directly apply Disk Management to partition the hard drive:

  • Install the hard drive to Windows 11 computer and open Disk Management.
  • Right-click the unallocated hard drive, and select "New Simple Volume".
  • Set the partition size, add a new drive letter, and set its file system as NTFS, then click "OK" and "Finish".
  • Repeat the process if you need to create more partitions in the hard drive.

If your disk is already used, and you want to reallocate the disk drive, follow the guide provided on this page for help. You can apply EaseUS Partition Master to efficiently allocate free space from other volumes to your target partition.

4. How to allocate unallocated space in Windows 10?

When you have unallocated space on a hard drive in Windows 10, you can either apply it to create a new simple volume or use the unallocated space to extend a system C drive, or increase a partition that has a low disk space issue.

If you need a detailed step-by-step guide, follow this page for help: How to Allocate Unallocated Space in Windows 10.

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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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