Basically, I want to still use my PC while I install Windows 8.
The drive I want to install to is physically different from the one I am running Windows 7 on, and so, if I wanted to boot to Windows 8, I'd choose a different boot device from my BIOS.
Can I install Windows 8 to a separate hard drive (not external) whilst still using Windows 7, without touching the Windows 7 installation?