Changing System Disk for Windows Server 2012

Q: How do I move my System partition to a different disk?

A: I recently had this exact problem. Somehow my System partition (the partition the hardware initially uses to trigger the OS boot) was running on the wrong disk.

As you can see in the screenshots below, my F drive was the System drive but I wanted it on my C drive. (Note that ideally you would have a separate 350MB partition at the start of the disk, which would allow technologies such as BitLocker to be used in the future; however, it's not mandatory.)

There are several ways to solve this however what I found to be the easiest way was the following using the Windows 8 boot media:

If this was a Hyper-V server, the hypervisor would be set not to launch, so you would need to run this command:

bcdedit /set {current} hypervisorlaunchtype auto

You can also check that the system partition has moved by using Disk Manager (diskmgmt.msc).