Error extending volume: Size Not Supported, During extending Operating System partition In Windows Server 2012

In this article, I will solve the below Windows Server Issue

Error extending volume: Size Not Supported


Scenario

When I tried to Extend Volume for a specific drive in Windows Server 2012 R2 by opening

  • Server Manager > File and Storage Services.

Open server manager - file and storage services

  • Navigate to Disks > (I have unallocated free space (19.5GB)).
  • Right click on C Drive > Select Extend volume.

Expand Volume from server manager in windows server

  • The following dialog will be shown to set New size.

extend volume in windows server

  • When I set the New size and clicked OK, I got “Extend failed” as shown below:

extend failed in windows server

  • I clicked on Extend failed to find out the reason, I got

Error extending volume: Size Not Supported

Error extending volume: Size Not Supported


Cause

The “Error extending volume: Size Not Supported” usually occurs because of there is a partition/drive between the original partition and the unallocated spaceThence, 

If you want to extend volume, you should make sure that there is no partition between the original partition and unallocated space.


Solution

In this case, you will need to unallocated the drive space beside the operating system drive. but this means all data in this drive will be deleted!

So before you getting started,  you should

  • Make sure that the unallocated space is greater than the F:\ drive (the drive beside OS drive) size to ensure that you can move the F:\ drive content to this space.
  • Create a new volume from the unallocated space.

Create a New volume In Windows Server

  • Move the data files from F:\ Drive to the New Volume.
  • Delete F:\ Drive.

delete volume in Windows Server

  • You are now having unallocated space beside the Operating System drive.
  • Again, try to extend the Operating System drive that should be now extended properly.

Applies To
  • Windows Server.
  • Windows Server 2012.
  • Windows Server 2016.
See also

How to extend a volume via Disk Managment in Windows Server 2012. 

Advertisements

7 thoughts on “Error extending volume: Size Not Supported, During extending Operating System partition In Windows Server 2012

  1. I had a similar problem…..In my situation i had an extra volume (in my situation was the extra volume was called (F:) between the (C:) volume (the volume that i was planning to extend) and the unallocated space). I deleted the (F:) volume, and then i could extend the (C:) volume. Apparently there should be no volumes between the the (C:) volume and the unallocated volume.

    Like

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

w

Connecting to %s