By AOMEI / Last Updated May 15, 2020

With the daily increasing data, have you ever found that your system drive is under low disk space due to temporary files, caches or rubbish, while the other partition has enough free space. At this moment, do you hope to move free space in Windows 10 from other partition to system drive?

Disk Management

When facing the problem, some users of Windows 10 may ask help from Disk Management. Yes, as a built-in tool, Disk Management enables you to create/delete/format/extend/shrink partition. Unfortunately, you aren’t allowed to move free space with Disk Management directly. But you can shrink the partition which has enough free space to get unallocated space and then add the unallocated space into system partition. With this method, have you solved your problem?

This method is not always available, because if the unallocated space isn’t adjacent to system partition or behind it, the Extend Volume will gray out. The reason is that the feature of Extend Volume is available only there is unallocated space next to the partition you plan to operate. With this limitation, what can you do to move free space in Windows 10?

AOMEI Partition Assistant Professional Edition

AOMEI Partition Assistant Pro is specialized in partition management. It allows you to move free space in Windows 10 with a few simple steps without data loss. Compared with Disk Management, this software can transfer free space to system partition more freely. The following will show you how to move free space in Windows 10.

Before you do:

  • You can only allocate the free space from one partition to another. Besides, the size of free space you are going to allocate should be less than or equal to free space in source partition.

  • If there is running applications in the partition which you will perform, AOMEI Partition Assistant will inform you to close those applications, otherwise this operation will continue in PreOS Mode .

Step1: Download AOMEI Partition Assistant Pro, install and launch it. Choose the partition you want to move free space from and then choose Allocate Free Space.

Step2: Choose how much free space you want to move and where you want move, and then click OK.

Step3: To perform your operation, please click Apply on the upper left.


  • This operation may change the original location for your data, so, in order to guarantee the safety of your data, we suggest you to learn the tutorial "How to Safely Partition" before executing this operation.

  • After executing the allocation operation, the program will take some free space from the source partition to the target partition. In other words, the source partition will be shrunk, and the target partition will be expanded.