2 hard disks

[norman]

I am setting up a new computer for my granddaughter, installed Edubuntu
and everything works without any problem. I have the hdd from the old
machine on which is installed Win XP. If I put this old drive into the
new computer, along with the new one, could it be made available in case
she needs to use windows for a game or something? I presume that the old
drive would have to be set as a slave but what else needs to be done
please?

Norman