Introduction
The error "Unable to create the Hyper-V virtual machine" typically occurs when attempting to create a new VM in Hyper-V during the final restore stages. This article provides a step-by-step guide to resolve this issue and successfully create a new VM while attaching existing disks that were restored.
Resolution
Follow these steps to create a new Hyper-V virtual machine and properly attach existing virtual hard disks:
1) Open Hyper-V Manager
Press Win + S, type Hyper-V Manager, and open it.
2) Begin Creating a New Virtual Machine
In Hyper-V Manager, click Action > New > Virtual Machine.
Click Next to start the New Virtual Machine Wizard.
3) Configure Basic Settings
Specify Name and Location:
Enter a name for your VM. Click Next.
4) Assign Generation
Select the VM Generation (Generation 1 or Generation 2).
Match this to the generation the existing disk(s) were created for. Click Next.
5) Assign Memory
Specify the amount of startup memory. Click Next.
6) Configure Networking
Choose an existing Virtual Switch if available.
If no Virtual Switch exists, you can add one later from the Virtual Switch Manager. Click Next.
7) Connect Virtual Hard Disk
Select "Use an existing virtual hard disk."
Click Browse and navigate to the path of the VHD or VHDX file you want to attach. Click Next.
8) Finish VM Creation
Review the summary page. Click Finish to create the VM.
9) Start the Virtual Machine
Right-click the VM and select Start.
Open Connect to view the VM console and confirm that it boots properly.