Anyone know of any free operating systems. I have a old comuter that I just want to use to play WOW on.

The whole idea of linux maybe? We have an whole forum-section filled with everything you want to know about it. You can find it here once there, feel free to ask anything you wish to know about Linux.

Thank you and sorry for posting in the wrong place.

dont know if linux will play WoW though. You prolly could, but its going to involve a lot of work, you cant just pop in the disc and play youd almost have to have some sort of virtualization software or write your own.

Blizzard doesn't support playing WoW on Linux.

See Here: The Gospel of Minimum system requirements for World of Warcraft, according to Blizzard.

WoW works under Wine...

These instructions seem pretty straight-forward, but expect a slight performance hit, even on a good PC it won't be as fast as if you were running it under Windows,

I'd recommend ReactOS, if it wasn't so buggy...