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

Updated by Daisy on Sep 22, 2022
Written by Roxanne

"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."

You may come across a similar situation while using your Windows 11 PC or laptop if the hard drive is not well-partitioned. There are several users who face the problem of "low disk space" on their system drive or on other drive partitions. If you are also going through a problem that is mentioned by the user above, you don't need to panic at all.

Wondering why? Simply because you can allocate a hard drive in Windows 11 PC or laptop. As a result, you will get a larger capacity. 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 windows 11. So, let's start right in!

Workable Solutions Step-by-step Troubleshooting
1. Allocate Free Space Without Deleting (EaseUS Partition Master) Step 1. Right-click on the D: partition with enough free space and select "Allocate Space"...Full steps
2. Allocate Free Space to Another Partition with Disk Management Step 1: Press the "Windows + R" keys together to open the "Run" window...Full steps

Why Allocate Free Space in Windows 11 

If you are not able to download and install important Windows update, files, or other programs, the chances are that you are running low on your hard drive. On the other side, free space is a segment of capacity memory of a hard disk partition that is not in use. It is ideally the rest stored space of a partition. You can use this free space to store your data directly.

For this, you are required to allocate free space to your Windows 11 PC or laptop. It is a procedure of separating a physical hard disk into independent drive partitions. But if you are confused about whether or not it is necessary to do it, here are some reasons that show why you can consider allocating free space in Windows 11:

  • Run different OS on one PC: due to any reason, 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. It is because every operating system requires a separate partition
  • 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

How to Allocate Free Space Without Deleting in Windows 11

Allocating free space is a feature that will assist you in redistributing free partition space. But in order to solve the issue of how to allocate a hard drive windows 11 without deleting files, you would require a professional tool like EaseUS Partition Master. You don't require to have expert-level skills to be able to use this tool. It means once you download and launch the program on your Windows PC, it will be a simple task to allocate free space on Windows.

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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

One of the most significant benefits of using this partition master is that it is an easy-to-use disk partitioning software that is trusted by more than 60000000 users all across the globe. You can use this tool to allocate free space on a hard drive without deleting your precious data. Moreover, unlike other third-party tools, it will allow you to do the following tasks:

  • Copy and clone the entire disk to another
  • Migrate an operating system to SSD in order to speed up the Windows version without reinstalling it
  • Resize or move, delete, format partitions
  • Wipe disk data to ensure privacy

How to Allocate Free Space to Another Partition with 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. So, if there is unallocated space next to the partition, you'll need to select the "Extend Volume" option.

However, if there is no unallocated space on the hard drive, you need to delete its adjoining partition before you can extend another to get unallocated space and then do the volume extending. 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


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 hard drive, but you may need to delete its data. However, with EaseUS Partition Master, there is no requirement of deleting partition 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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About the Author

Updated by Daisy

Daisy is the Senior editor of the writing team for EaseUS. She has been working in EaseUS for over ten years, starting from a technical writer to a team leader of the content group. As a professional author for over 10 years, she writes a lot to help people overcome their tech troubles.

Read full bio

Written by Roxanne

Roxanne is one of the main contributors to EaseUS and has created multiple posts on digital devices like PCs, Mobile phones, tablets, Mac, etc. She loves to share ideas with people of the same interest.

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Product Reviews

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  • I 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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  • Partition 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.

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  • It 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.

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