Windows 7 64-bit fails to install on VirtualBox on Linux with status code 0xc0000225:
“Windows failed to start. A recent hardware or software change might be the cause. To fix the problem:
1. insert your Windows installation disc and restart your computer.
2. Choose your language settings, and click “Next.”
3. Click “Repair your Computer”.
This can be solved by modifying the VM setting:
enable “IO APIC”.