If the Virtual Machine has terminated unexpectedly during startup with exit code 1 (0x1), reboot the host computer and follow the solutions mentioned here.

If you have enabled Hyper-V on your host Windows 11 or Windows 10 machine and have created one or more virtual machines, but when trying to start or boot the VMs as usual it doesn’t work, and ...

You can then boot the virtual disc in Windows 11 with Virtualbox or Hyper-V as a virtual machine in the window. Use the free Disk2vhd to convert a physical data carrier into a virtual hard disk file.