If you get this error while trying to install Windows 7 or Windows 2008 Server within a Virtualbox guest
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.
you need to do the following to resolve the issue:
- Power Down the Virtual Machine
- Go to the Settings of the Virtual Machine
- Under “System” tick on “Enable IO APIC”
Error (0xc0000225) installing Windows 7 on VirtualBox