How to switch between operating system by changing bios settings
November 5, 2011 11:03pm CST
When the pc is turn on..windows 7 will start then it goes to bios. then it restart then xp will start up.
9 Nov 11
You don't need to touch any setting in the BIOS at all, unless you install both OSs on different physical HDs and though the BIOS you choose which one to boot. But it's a lot easier to just install a grub program (Windows includes one by default when you install 2 instances of it) and it will present, at boot time, a nice menu which gives the option to select the OS you want to use each time.