I have an HP 2133-KX869AT Mini Note PC with factory installed linux (which I hate). I'd like to go to Windows 7. The unit has a 1.2GB processor, 1GB of RAM and a 120G Hard Drive. It does not have any capacity to read a CD or DVD (no internal or external drive). I have other computers and a home network. If I purchase Windows 7, how will I be able to install it and is this machine capable of running 7?