Hyper-V is a hypervisor developed by Microsoft to run Virtual Machines but if you observe that the virtual machine is no longer functioning properly the reason could be that your VM does not have enough storage to perform optimally. In this guide, I will be showing you How to Increase Disk Size in Hyper-V when you discover that your VM is throwing some storage-related errors. Please see How to add a second Domain Controller, and how to extend System Drive Partition on Windows.
What you need to do is to increase the VM storage capacity by adding another internal or external hard drive. Below is a YouTube video on how to increase Disk Size in Hyper-V
You can also read more on Hyper-V: Fix Hyper-V VM Stuck in Stopping State, 3 Ways to Convert VMware VMs to Hyper-V, Hyper-V Server Core Mode: How to install free Hyper-V Server on a VMware Workstation, how to Fix Boot Failed UEFI SCSI Device on HyperV.
Steps on how to increase disk size in hyper-v
Launch the Hyper-V Manager. Right-click the VM and select Settings.
2. Select Hard Drive in the Hardware pane and click the Edit button.
3. Follow through on the Edit Virtual Hard Disk Wizard and select Expand..
4. On the Configure Disk page enter the new size you want for your Virtual machine. Click finish.
5. To verify the hard disk has expanded successfully select the Hard Drive, and click the Inspect button.
Please see What to do after increasing the Memory of Oracle Database, and how to increase the Windows PIN complexity to accommodate more digits.
Extend the volume size through Disk Management Utility
6. We will now extend the volume on the virtual hard disk. Enter DISKMGMT.MSC in the search bar of the virtual machine and this will open the Disk Management Utility.
Disk Management utility will display allocated and unallocated space on the VM drive.
7. From the Disk Management, the size that was added shows as Unallocated. Right-click the C: drive and select Extend Volume. This Extend Volume wizard will open.
8. Please note that you can only extend the volume to the available space shown as unallocated. select the available amount of space and click Next and finish.
9. Immediately you are done the disk capacity will be extended.
Please see the following related articles: How to extend a VM Hard Disk on VMware Workstation. Enable HyperV on Windows: How to install Windows 11 on HyperV, and how to fix an error occurred while attempting to connect to the server.
FAQs on how to increase Disk Size in Hyper-V
How do I increase the disk size in Hyper-V?
To increase the disk size in Hyper-V, open Hyper-V Manager, select the virtual machine, go to Settings, choose the hard disk to resize, and then adjust the size accordingly.
Can I increase the disk size while the virtual machine is running?
You can increase the disk size of a virtual machine in Hyper-V while it is running. However, you might need to perform additional steps within the guest operating system to recognize the new space.
What happens after I increase the disk size in Hyper-V?
After increasing the disk size, you need to extend the partition within the guest operating system to utilize the additional space. This is a separate step from the Hyper-V Manager.
Do snapshots affect the ability to increase disk size in Hyper-V?
Yes, having snapshots can impact the ability to increase disk size. It’s recommended to delete or merge snapshots before attempting to resize a virtual disk in Hyper-V for a smoother process.
Can I decrease the disk size in Hyper-V?
Hyper-V does not have a built-in feature to decrease the disk size directly. You may need to use third-party tools or create a new virtual disk with the desired size and migrate the data
I hope you found this blog post on how to Increase Disk Size in Hyper-V Interesting and helpful. In case you have any questions do not hesitate to ask in the comment section
