Thanks for posting on our forum!
After you get your VHD, all you need is a kind of virtualization platform to boot your vhd. Microsoft has several kinds of virtualization platform, such as Hyper-V, Virtualbox. I have noticed that you use "Hyper-V" tag, so can I guess that you have installed Hyper-V? Whatever kind of virtualization platform you want to use, all you need to do is to create a VM using the vhd created from your Desktop.
On the basis that you have already decided to use Hyper-V and installed this platform successfully. Here is what you should do next:
You just need to follow the steps to create a new VM, and choose "Existing virtual hard disk" when you in "Connect Virtual Hard Disk" Page.
Besides, if you actually want to put this vhd into a new PC and restore your desktop, then I think @Andreas Baumgarten has offered you the appropriate approach.
Thanks for your support!
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