Merge partitions

Combine non-adjacent partitions on Windows PC & Server

This article introduces how to merge non-adjacent partitions on Windows 10, 8, 7, Vista, XP and Server 2019, 2016, 2012, 2008, 2003 R2.

Merge partitions

Merge contiguous partitions without software

All disk partitions are allocated when installing Operating System, but sometimes you need to merge two partitions. For example: one of the drives is running out of space, you may combine another drive to increase free space. If there are too many volumes created, you may also combine partitions together.

To combine two continuous partitions, you can achieve in Windows native Disk Management without software. For example: there are drives C, D, E and F in the same disk, if you want to combine D and E drive, follow the steps:

  1. Back up or transfer all files in drive E.
  2. Press Windows and R key on your keyboard, type diskmgmt.msc and press Enter to open Disk Management.
  3. Right click drive E and select Delete Volume.
  4. Right click drive D and select Extend Volume.
  5. Simply click Next till Finish in the Extend Volume Wizard window.


  • In Disk Management of Windows XP and Server 2003, there is no Extend Volume feature, so you need to run DiskPart Command.
  • You may also merge two contiguous volumes with partition software, all files in drive E will be move to a folder in partition D automatically.

How to combine non adjacent partitions?

If you want to merge two non-adjacent volumes, for example: combine C and E drive, or merge D and F drives, Disk Management cannot help you, because Extend Volume can only combine Unallocated space to the left adjacent partition.

Cannot merge

In this situation, you need 3rd party partition software. Among these tools, NIUBI Partition Editor provides unique 1 Second Rollback, Virtual Mode and Cancel-at-will technologies to ensure system and data intact, so it is recommended to resize, move and merge disk partitions.

Download and install it, you’ll see all disk partitions on the right and available operations on the left side.

Partition Editor

Steps to merge non adjacent partitions with NIUBI:

Step 1: Right click drive E and select Delete Volume. (Remember to back up or transfer files)

Drive E deleted

Step 2: Right click drive D and select Resize/Move Volume, drag the middle position rightwards in the pop-up window.

Move Unallocated

Unallocated space will be moved to the left side of D.

Unallocated moved

Step 3: Right click C drive and select Resize/Move Volume again. Drag the right border rightwards in the pop-up window.

Merge Unallocated

Unallocated space will be merged into C drive.

Unallocated merged

Tip This software works in virtual mode and these operations will be listed as pending on bottom left, to modify real disk partitions, click Apply on top left to confirm.

Resize partition drive instead of merging

If you want to reduce the number of drives, you can merge two contiguous partitions with either Disk Management or NIUBI. If you want to expand a volume by merging other partitions, it is better to resize these partitions instead of merging them together, because one of the volumes will be deleted.

For example: if you want to extend C drive, you may either shrink the adjacent drive D or the non-adjacent partition E to get Unallocate space, and then add Unallocated space to C drive. Watch the video how to do this:

By this method, no partitions will be lost, Operating System, programs and all files keep the same.

In Summary

Windows built-in Disk Management utility cannot help you combine nonadjacent volumes, it can only help you merge a volume to the left adjacent one. To merge non adjacent partitions in Windows Server or PC, you need 3rd party partition tool. As the safest program, NIUBI Partition Editor helps you shrink, extend, move and merge partitions safely and easily.