By AOMEI / Last Updated May 15, 2020

When you need to merge two partitions:

You may sometimes be obsessed with low space in one certain partition while others may be left unused for long with much space. Further more, it may sometimes appears you need to merge logical drive with primary partition. In this case, why not consider merging two partitions into one to help the one get more space and let the other go?

Ways to merge two partitions:

If you are not a profession, you have several options to fulfill the goals mentioned above:

1. To use the Windows built-in Disk Management, which doesn’t support merging logical drive with the primary partition.

2. To use AOMEI Partition Assistant for free to merge logical drive and primary partition as needed.

With Disk Management:

This option will be rather complex. Since several limited functions provided by the Disk Manager do not include merging partitions directly. You will first need to delete one partition to make some unallocated space to extend the other, during which there might be some other required operations such as moving the unallocated space to the right of the partition you want to extend, thus technically it should not be called merging. But the problem is that two partitions to be merged may not be the same type, that is, one of which is a logical drive while the other is a primary partition. In this case, with Disk Manager, the unallocated gained from shrinking one of the two cannot be used to extend the other.

Note: Deleting a partition with Disk Management will result in loss of all data in that partition, but it can be backed up in advance and restored with another free software called AOMEI Backupper.

Disk Management

With AOMEI Partition Assistant:

The Partition Assistant is likely to make the process much easier. A few steps will help you to get the merging done:

Step one: After launching Partition Assistant, right-click a partition which you want to merge into another, choose Merge Partitions or directly click Merge Partitions on the lower left.

Choose Merge Partitions

Step two: In the pop-up window, select two or more partitions or partitions(or unallocated space) to commence merging. You can also choose which partition to be left after merging. Here I choose to merge E drive into D partition, leaving the latter after the merging. Then click OK.

Tips: As shown, all data on the merged partition will be merged into the set partition, freeing you from worries of data loss.

Choose Partitions

Step three: After clicking OK, you can see an extended D partition. What is left to do is to click Apply then Proceed and leave the program to bring the merging into being.



Note: In some cases rebooting system may be required, e.g. merging system partitions or Backupper is located in the partition to be merged. After you proceed to reboot, merging will be accomplished under pre-OS mode.

The steps and tools mentioned above will help to merge two partitions, especially to merge logical drive with primary partition. Besides, if you do not want the data on one of the partitions to exist in the partition after merging, you can consider backing them up and restoring them in other partitions.