Error (0xc0000225) installing Windows 7 on VirtualBox

If you get this error while trying to install Windows 7 or Windows 2008 Server within a Virtualbox guest

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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.

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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”

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