How do I fix extend volume is greyed out?

Evade “Extend Volume” greyed out issue easily

  1. Install and launch the software. You can see there is unallocated space next to the D drive on the main interface. (
  2. Right-click C drive and select Merge Partitions.
  3. Choose unallocated space, and then click OK.
  4. Click Apply, you will see the C drive has been extended.

How can I use DiskPart to extend a volume?

To extend a volume, follow these steps:

  1. At a command prompt, type diskpart.exe.
  2. Type list volume to display the existing volumes on the computer.
  3. Type Select volume where is number of the volume that you want to extend.
  4. Type extend [size=n] [disk=n] [noerr].

Why am I not able to extend the volume of my C drive?

The reason why the Extend Volume option is greyed out in the disk management tool is because of the unallocated space is not right contiguous to the C drive. To make it work, you need to put the unallocated space right next to the C drive and then extend the volume.

How do I activate extend volume?

After Computer Management opens, go to Storage > Disk Management. Select and hold (or right-click) the volume that you want to extend, and then select Extend Volume.

How do I select unallocated space in diskpart?

Open the Command Prompt as Administrator. Type diskpart and hit Enter. Once you enter to the diskpart screen type list disk and hit Enter. Now a list of the disks will be shown, type select disk x (the X is the disk number that has an unallocated space) and hit Enter.

Why is extend volume grayed out and how do you quickly fix it?

As here is no unallocated space after the C partition drive, so extend volume greyed out. You need to have an “unallocated disk space” to the right of the Partition\Volume you wish to extend on the same drive. Only when “unallocated disk space” is available “extend” option is highlighted or available.

Why can’t I extend my C drive in Windows 10?

You will be unable to extend C drive in Windows 10/11 Disk Management when there is no contiguous unallocated space. It is acceptable to get a proper unallocated space by deleting partition.

How do I extend unallocated space?

Besides, its “Resize Partition” feature can extend volume to the adjacent unallocated space no matter it is on the right side or left side. Just right-click the target volume, select “Resize Partition”, drag the edge towards the blank space to extend the volume. After that, click Apply to submit the operations.