Free Tool to Resize Partition on Windows 11 Without Losing Data

How to resize the partition on Windows 11? What’s the most effective way to change the size of the partitio? If you’re still seeking the answer on the Internet, this post will show you how to use a free tool to resize partitions on Windows 11.


By Tina / Updated on May 12, 2023

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Need to resize partition on Windows 11

Resizing partitions refers to shrinking or extending partitions. Many users may find that their computer running slowly, and even receiving a low disk space warning because of C drive is full, which will cause a serious impact on the performance of Windows 11. Therefore, some users may shrink one partition to extend another or add unallocated space to a partition that runs out of space.

Now, I’m going to show you how to use free tools to resize partitions on Windows 11, including Windows built-in utility Disk Management and a third-party freeware AOMEI Partition Assistant Standard.

Resize partition on Windows 11 with Disk Management

Disk Management is a built-in tool that would directly resize partitions on Windows 11. Using this utility, you can perform various operations including resizing, formatting, and deleting partitions. Please follow the steps below to resize (shrink or extend) the partition in Windows 11:

Shrink a partition

Step 1. Press and hold the "Windows + R" at the same time, then type "diskmgmt. msc" in the window ejected.

Step 2. Right-click the partition you want to resize and select "Shrink Volume".

Step 3. In the following window, input the amount of space you want to shrink and click "Shrink".

Shrink DM

Tip: To shrink a partition with Disk Management, the partition must be NTFS or RAW and there should not be unmovable files in the end of the partition you want to shrink. If you ignore those demands, this button will be greyed out.

Extend a partition

Step 1. Open Disk Management as the step mentioned before.

Step 2. Right-click on the partition you want to extend and select "Extend Volume".

Step 3. Follow the popped guide to complete the rest steps.

Extend DM

Tip: To extend a partition with Disk Management, there must be an unallocated space next to the partition, and the partition must be NTFS or RAW, or Extend Volume will be greyed out.

Using free tool to resize partition on Windows 11

Although we can use Disk Management to resize partitions, there’re many limitations when we operate it. For example, the partition must be NTFS or RAW and unmovable files cannot exist at the end of the partition you want to shrink, or "Shrink Volume" will be greyed out. Besides, if you choose the target partition incorrectly, it will result in the loss of some important data.

So if you want to seek powerful software to resize partitions on Windows 11 and other versions of the Windows system, a free partition tool for the Windows 11- AOMEI Partition Assistant Standard can meet your needs.

This free tool breaks through the restrictions of Disk Management. It allows you to resize partitions in any file system format, and there will be no situation where the partition cannot be shrunk. Besides, it is compatible with all Windows operating systems including Windows XP/Vista/7/8/10/11. So you don't have to worry about whether it will still work after upgrading to Windows. Moreover, the data won’t lose after you resize the partition on Windows 11 with the help of this excellent Windows partition resize tool.

Please download this free tool to resize partitions on Windows 11.

Download Freeware Win 11/10/8.1/8/7/XP
Secure Download

Before you do:
Make sure there’re no errors in your partitions.
If your partition has enabled Bitlocker encryption, don't worry, AOMEI software makes it possible to adjust the size of encrypted partitions.
Please don’t cut off the power while resizing partitions. If it’s a laptop, please make the power cord connect properly for charging the battery.
Please don’t click "Apply" when there are already too many tasks pending.

Step 1. Right-click the partition with much free space and hit "Resize/Move Partition". 

Resize/Move Partition

Step 2. Put your mouse on the little circle of the right border and move the double-headed arrow leftward to resize the partition selected. Then, click "OK".  (To extend the D drive you chose, you should move the double-headed arrow rightward.)

Drag Leftward


Step 3. Click "Apply" to skim the pending operation and then click "Proceed" to commit the operation.

Apply Resize Shrink

Further tip:  If there’s an adjacent unallocated space next to D drive, you can use Resize Partition to extend it. But if there’s not, you can try "Merge Partition" to extend the target drive.


So, the computer may be badly affected when a situation like a system partition running out of space occurs. After reading this post, I believe you have knew how to solute such problems. And you can realize that AOMEI Partition Assistant Standard is the best free tool to resize partitions on Windows 11 which you can rely on. 

By the way, if you want to resize the partition in Windows Server 2019/2016/2012/2008/2003, you can try AOMEI Partition Assistant Server.

Tina · Staff Editor
Tina is an English editor of AOMEI Technology. She has a positive attitude and full of energy. On her work, she always keeps thinking to figure out the solutions for users' problems, and writes the answers so that can help someone. In her daily life, she likes to sing, watch TV and sleep. She always being grateful and happy to all the things happened and all the people encountered.