I was trying to migrate a Windows SBS 2008 server to new hardware - used backup software to create a .VHD, then attached it to Hyper-V in Windows Server 2012. The VM ran well for a few boots, then after the last restart nothing will boot to anything but a black screen. All Safe Modes, Last known good, VGA mode, Directory Services, etc. all give the same results. They will boot to the point of showing drivers loading or the Windows splash screen, but after that they all go black at the same point. I have a cursor, not sure if it is "real" or not (i.e. if I would get the cursor if it were a physical machine, or it's Hyper-V planting it there) but I cannot do anything as the screen is all black and I had not set up the network card yet so I cannot remote desktop to the VM. It appears that the VM is actually booting I am just not getting any display, as the CPU% being taken by the VM in Hyper-V is constantly changing. Any ideas on this?