How to Transfer Space from One Drive to Another in Windows 11/10

When one partition is low on disk space and there is a lot of free space on other partitions, you will want to move free space from one drive to another or from one partition to another, such as allocate free space from D drive to C drive.

This tutorial will provide the full solutions to transfer free space and extend partitions. Continue reading and follow the steps.

How to transfer space from one Disk to Another via professional manager

In this part, we will provide two solutions to transfer free space, and we've concluded the full situations:

Option  1 is Suitable for two partitions on the same disk, moving free space from one partition to another

Option 2 is suitable for the two partitions on different disks, with free space on disk 0 and the E drive or D drive on disk 1 

Option 1. The Two Partitions are on the Same Disk

AOMEI Partition Assistant Professional provides a feature named “Allocate Free Space” , which can help us transfer free disk space from one drive to another directly. You can successfully change the zoning layout with or without adjacent space. For example, move space from D to C drive with a few clicks on Windows 11/10/8/7.

1. Install and launch AOMEI Partition Assistant on the computer. Right-click the partition you want to allocate from (partition D with free space) and select “Allocate Free Space”.

2. In the pop-up window, it gives you option to specify the space size and destination partition. Select C drive from the given list.

3. Here is a virtual outcome. Click “Apply” > “Proceed” to make it real.

★Tips:

Since the system drive is involved, a restart is required.

This applies to different partitions on the same physical hard drive.

To perform this task in Windows Server, you can turn to the Server edition.

Option 2. The Two Partitions Are Not on the Same Disk

When two partitions are located on different disks, you have to convert the base disk to a dynamic disk and then transfer or move the free space or unallocated space to the other partition. AOMEI Partition Assistant provides you with comprehensive help:

Download this powerful software for free then follow the steps below to move the space to another partition even if they are located on different hard disks.

Step 1. Install and run Omnicom Partition Assistant. Click "Convert" in the top toolbar and select "Dynamic Disk Converter".

Step 2. Follow the prompts to select "Convert a basic disk to a dynamic disk". Click "Convert" to continue.

Step 3. After the conversion is completed, merge the two disks into one.

Tip: The other dynamic partition must have unallocated space. If not, use AOMEI Partition Assistant to delete all partitions on it. In addition, you cannot merge the system partition even if you have converted it to a dynamic partition.

• Right-click on the target partition and select Resize/Move Partition.
• In the pop-up window, adjust the length of the green bar by dragging the circles on both sides.
• Execute the task after the extended partition is completed.

How to transfer space from one drive to another in Windows 10

Technically, there are several solutions to fix this issue since the theory is to increase one drive space by reducing another drive. To change the unreasonable partition layout, one can resize partition using Diskpart, the built-in tool of Windows. However, this is a roundabout way because no matter to shrink or extend partition, the unallocated space won’t be the location that you want it to be.

Disk Management is also a great tool for managing hard drive and its partitions. It has a graphical user interface that is suitable for user who has limited computer knowledge. If there is unallocated space adjacent to the partition you want to increase, just right-click the partition and select “Extend Volume”. When "Extend Volume grayed out", you can delete the contiguous partition to make it unallocated and then repeat the above steps.

Quick Steps to Add space via Disk Management:

• Run Computer Management as administrator and open Disk Management.
• Right-click on the target D drive and select Extend. Click Next.
• Select the amount of space to allocate to drive C.
• Click Next and then Finish.

Although Windows brings excellent built-in tools, some users still want a better way to allocate free space from one partition to another easily and safely. In this situation, try AOMEI Partition Assistant. This tool provides a full and comprehensive solution to add space from one drive to another.

Why transfer free space from one drive to another?

Transferring free space from one drive to another can serve several purposes:

✦ Optimizing Storage Allocation: If one drive has a surplus of free space while another received low disk space warning, reallocating some of the unused space can help balance storage resources more effectively.

✦ Consolidating Data: It allows you to consolidate data on a single drive, making it more organized and easier to manage. This is particularly useful when dealing with large files or media libraries.

✦ Improving Performance: By moving data from a nearly full drive to one with more free space, you can help prevent performance issues that can occur when a drive is close to capacity.

✦ Preparing for Backup or Migration: When you're planning to back up or migrate data from one drive to another, having sufficient free space on the destination drive is essential.

✦ Avoiding Fragmentation: Drives tend to perform better when they have more free space, as it reduces the likelihood of file fragmentation.

Remember, whenever you're dealing with data and storage management, it's crucial to back up important files before making any significant changes to avoid potential data loss.

Conclusion

Actually, when it comes to how to transfer space from one drive to another in Windows 10 or Windows 7, many countermeasures are workable. Nevertheless, to find out the easiest workaround and reduce the risk of losing data during the process is not that easy.

AOMEI Partition Assistant is capable of solving many other issues as well. For example, it is a Lexar USB drive format tool that can format other brands of USB sticks, too. If you installed SSD and want to move Windows 10 to new SSD, this software can do you a big favor in migrating OS to SSD and keeping files on HDD.