Virtual Hard disk is really important in Virtual computers field. So, let me show how to create a virtual hard disk and attach it in windows.
First, open start menu, then right click on computer. Now, a menu appears, select manage from there.
there are two types of Virtual hard disks, dynamically expanding and fixed sizes. Dynamically expanding hard disks are not recommended because they expand as you store files which is good. But, they don’t shrink automatically when you delete the files on it which is really bad. So, lot of people recommend you to use fixed size, which wont cause any headaches ever.
Now fill in the path, space and select OK.
But, wait you can do nothing of it yet, you still got to do few more steps to access it. Now, right click on Disk 2 (or anything else which is associated with newly created VHD) and select initialize disk
How to attach a Virtual hard disk.
Like from above computer management window rather than selecting the Create VHD just select the Attach VHD.