How to Shrink Volume in Windows 10 without Data Loss?

You can shrink volume in Windows 10 with Disk Management, but in this article we will introduce you how to shrink partition enough when the available shrink space in low.

December 23, 2014

How to Shrink Volume in Windows 10 without Data Loss?

There are some common situations met by Windows 10 users, such as there are not enough partitions for you to keep your data separately, or day after day, you realize one partition is in low disk space while another partition has enough free space that you hardly use. No matter which situation happens to you, shrinking volume may be your necessary method to solve such problems.

How to Shrink Volume in Windows 10?

For PC users, it is well acknowledge that Disk Management in Windows 10 can help you shrink volume without any data loss. It is a reliable tool. You can just click This PC<Manage<Disk Management to enter the tool. And then choose the partition your plan to shrink and select Shrink Volume.

Shrink Volume

Although this built-in tool is sounds nice, it also has its own limitations. For example, you can only shrink half size a partition, which means if there is 50 GB in your partition, the maximum size you can shrink is 25GB. Sometimes, you may see the available shink space is much less than that, especially when you try to shrink C: drive in Windows 10.

Fortunately, there is third-party software - AOMEI Partition Assistant Professional, which is specialized in partition management. As for this software, shrink partition in Windows 10 is just a piece of cake. You can shrink partition as much as you want as long as there is free space. Meanwhile, it is able to do some advanced operation such as allocate free space, convert between MBR and GPT, migrate OS to SSD and so on.

Step1: Download AOMEI Partition Assistant Pro, install and launch it. Click the partition you are going to shrink (eg. Partition D) and then choose Resize Partition.

Resize Partition

Step2: Left move the bar to decide the size you want to shrink from partition D and then click OK.

Left Move Bar

Step3: Make sure you have right done all the things; please click Apply to execute all the operations. Then you can see there is unallocated space behind partition D.



The following situations will make you perform the operation under PreOS Mode and your computer will be rebooted.

  • Shrink system or boot partition.
  • Shrink a partition on which the page file or AOMEI Partition Assistant installation file is on.
  • Shrink a partition where applications are running.

After shrink volume in Windows 10, you will get unallocated space on your hard disk. Then you can add the unallocated space into the partition you need to extend or create a new partition depending on your own requirement.  Compared with Disk Management, this software is more powerful for your partition management.