I am using a Dell at this time and haven't used eMachines for several years. I forgot about the keycode...but they can be looked up online. I found information on this site: http://www.fileguru.com/apps/emachine_windows_xp/p4...If you have an operating system other than Windows XP, they also have listings for that. You can pretty much google any information you're looking for.
I am not sure. I am just going by what's on the disc. It restores what was on the PC form the factory...so if you use this you will be installing the T1220.