How to Move/Merge/Add Unallocated Space in Windows 11

by John, Published on: July 8, 2021

Before saving files to a hard disk, you must initialize it, create partition with Unallocated space and then format this partition with a file system. Besides creating new volume, Unallocated space can be combined to an allocated partition without losing data. If you don't want to use any software, Windows 11 has native Disk Management tool to help you.

However, it can only merge Unallocated space to left contiguous partition. In addition, this partition must be formatted with NTFS file system. Any other types of partitions are not supported. In this article, I'll introduce full solution to manage Unallocated space in Windows 11 laptop, desktop and tablet computer. For example, how to move Unallocated space location, how to merge Unallocated space into a partition and how to add Unallocated space to C drive.

How to merge Unallocated space to a partition

You can merge Unallocated space to a partition in Windows 11 computer without losing data. As I said above, Windows 11 can only combine Unallocated space to the left adjacent partition. If you don't want to use any third party software, check if this partition is NTFS and if the Unallocated space next to this partition. If yes, follow the steps below. Otherwise, you have to run disk partition software.

Steps to merge Unallocated space in Windows 11 with Disk Management tool:

  1. Press Windows + X keys and click Disk Management in the list.
  2. Right click the NTFS partition with adjacent Unallocated space on the right, then click Extend Volume option.
  3. Simply click Next till Finish in pop-up Extend Volume Wizard.

If you want to merge Unallocated space to a FAT32 partition, or combine Unallocated space to the adjacent partition on the right, run NIUBI Partition Editor. It has free edition for Windows 11/10/8/7/Vista/XP home computer users. Better than other software, it has powerful 1-Second Rollback, Virtual Mode and Cancel-at-well technologies to protect system and data.

Download NIUBI free edition, you'll see all disk partitions with layout and other information on the main window. There's 30GB Unallocated space between D: and E: drive in my computer.

NIUBI Partition Editor

How to merge Unallocated space to adjacent partition in Windows 11 with NIUBI:

  1. Right click this partition (here is E:) and select "Resize/Move Volume" option.
  2. Drag left border towards left to combine the adjacent Unallocated space in the pop-up window.
  3. Click Apply on top left to take effect.

Extend E drive

If the left contiguous partition D is NTFS in your computer, you can follow steps above to merge partition with Unallocated space in Windows 11 Disk Management. If this partition is FAT32, Disk Management cannot help you. In that case, right click this partition in NIUBI Partition Editor and select "Resize/Move Volume" option. In the pop-up window, drag right border towards right to combine Unallocated space.

If you want to merge Unallocated space to nonadjacent partition in Windows 11 computer, Disk Management is completely useless. To merge nonadjacent Unallocated space to C drive in Windows 11, you should move Unallocated space to the left in advance. To accomplish this task, you can only use third party software.

How to move Unallocated space in Windows 11

In fact, it is very easy to do this. Similarly, you just need to drag and drop on the disk map of NIUBI. The difference is, don't drag the border towards the other side, drag the middle block instead. If you drag either border, you can only shrink or extend this partition.

Steps to move Unallocated space next to C drive in Windows 11 computer:

  1. Right click the middle partition D and select "Resize/Move Volume" option.
  2. Drag the middle block towards right in the pop-up window, then Unallocated space will be moved to the left.
    Move D drive
  3. Click Apply to take effect.

As I show you above, if you want to combine Unallocated space to the right contiguous partition (here is E:), you can combine directly without moving Unallocated space to the right. But if you want to merge Unallocated space to EFI/Recovery partition in Windows 11, you should move Unallocated space to the right in advance.

How to add/merge Unallocated space to C drive

After moving Unallocated space to the left, you can extend C drive easily with either Disk Management or NIUBI Partition Editor.

Steps to add/merge Unallocated space to C drive in Windows 11 with NIUBI:

  1. Right click C: drive and select "Resize/Move Volume" option.
  2. Drag the right border towards right in the pop-up window, then Unallocated space will be combined to C: drive.
    Extend C drive
  3. Click Apply to take effect.

Besides moving and merging Unallocated space in Windows 11/10/8/7/Vista/XP computer, NIUBI Partition Editor helps you do many other disk partition management operations.

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