I assume you are running a PC however if by chance you arent you can run VMware Fusion or Parallels. I believe Boot Camp is an option as well.
I run Windows 7 and Leopard on my MacBook Pro because I need to in order to run software for work on my Mac but I dont know that it makes things "faster"
I try to download and install after that I open virtual box and it says "FATAL No Bootable medium found! System Halted."
Did you intall VirtualBox, create a new virtual machine, and point it to the installation CD for that operating system? It's a two step process: Install VirtualBox. Then use VirtualBox to install a new operating system.
Comment