What I thought would be very quick and easy, to install Windows 7 on Virtual Box, led me having to do some googling after getting the error:
Windows Boot Manager Windows failed to start. A recent hardware or software change might be the cause. To fix the problem...... Status: 0xc0000225 Info: An unexpected error has occurred.
To resolve this error, thankfully its a simple fix:
- Power Down the Virtual Machine
- Go to the Settings of the Virtual Machine
- Under “System” tick on “Enable IO APIC”