FIX: Failed to Open a Session for the Virtual Machine in VirtualBox
If VirtualBox shows Failed to open session for the virtual machine [virtual-machine-name] and it is not starting the guest OS, this tutorial is useful for you. Also, VirtualBox might display The virtual machine has terminated unexpectedly during startup with exit code 1 (0x1), More details may be available in VirtualBox log file message. If you receive this error message, here is how to fix.
