Hello,
Last night I powered off my Windows 8.1 Pro machine running Hyper-V and one of the virtual machines may have gotten forced down hard. This morning when I tried to start it I am getting:
BOOTMGR is missing
Press Ctrl+Alt+Del to restart
My first suspicion was that the .VHD was corrupted and needed repairing. In the VMware world I would mount the disk to another VM and use various tools on it (chkdsk, etc) I believe Windows actually makes this a little easier by allowing mounding of a .VHD within disk manger. I mount the disk and see the following image:
Although the size is correct the disk comes up as RAW (Which seems odd to this hyper-V newbie). I am unable to explore the contents of the drive, I get the error "F:\ is not accessible. The file or directory is corrupted and unreadable."
I have a crazy suspicion that the drive is still locked by Hyper-V as if it is still running. Naturally I have confirmed the virtual machine appears offline. Is it possible that some kind of lock was not fully released when the machine was powered off? Any other troubleshooting tips I could try?