Tuesday, 15 December 2015

Hyper-V 2012 R2 - Expand IDE Controller Virtual Hard Disk Size - Part 7

Hello Everyone,

I have noticed that some users are not able to re-size IDE controller disks. Also, some blogs and other links mentioned that IDE controller disks can not be expanded.

But I had done this earlier and to re-confirm, I have tested the same in my test lab also. Only case is You have to Shut-down your machine and if it is production VM then there be will short down-time for your production environment.

So, below are the steps to follow for expanding IDE controller disk size.

PART 1: To see Hyper-V Features, Click Here!

PART 2: To see Hyper-V Installation Process & Console Overview, Click Here!

PART 3: To see Hyper-V Network Configuration Concept & Process, Click Here!

PART 4: To see Hyper-V Console Overview & Configuration changes, Click Here!

PART 5: To see Hyper-V Creating VM, Export & Import VM, Click Here!

PART 6: To see Disaster Recovery Configuration & Testing using Hyper-V Replica, Click Here!

Expand IDE Controller Virtual Hard Disk Size:

I have created a Windows Server 2012 VM with generation 1 on Hyper-V 2012 R2 Host. Selected OS Disk is IDE Controller as shown below:

Disk Size is 15 GB as shown below:

Open Hyper-V Console and Shutdown the VM:

Click on Edit Disk:

Click Next and Select Disk You want to expand:

Click Next:

Select Expand and Click Next:

I have expanded 10 GB more so total size will be 25 GB:

Click Finish:

Start the VM:

Open Disk Management and see If 10 GB is added, Yes it is added:

Right on Disk and Click on Extend Volume:

Click Next and Next:

Click Finish:

Disk is successfully expanded to 25 GB:

This is done.

Thanks for reading!!!

If You like my blogs then follow me for updates:


Join my Facebook group for updates on trending technologies/technical references/issues etc:



  1. I would definitely thank the admin of this blog for sharing this information with us. Waiting for more updates from this blog admin.thanks for your information really good and very nice web design company in velachery

  2. Pretty easy. Need to show this posts to "specialists" claiming that "mentioned that IDE controller disks can not be expanded"

  3. Your music is amazing. You have some very talented artists. I wish you the best of success. windows vps

  4. Awesome article, it was exceptionally helpful! I simply began in this and I'm becoming more acquainted with it better! Cheers, keep doing awesome! un curso de milagros

  5. You sound so passionate about what you are writing. Keep up the good work! Event Production Company