[Xeroid]

Quote:

some people install two os's to play around with another os. i.e they use windows as there main, and have linux on when they want to learn and play around with the os.

Exactly. It eases the transition to Linux. You still have an OS that you are familiar with on one HD or partition and you have another OS on the other HD or partition that you can learn at your own pace.

I've also seen people keep a Win98 partition because XP wouldnt play nice with a piece of hardware they needed.