Region setup in one pc affect the others pc in a network?

Dear friends:

I have two desktop computers in a home network both with Windows 8 Pro. One of them have an Spanish keyboard and the other an English keyboard. For the proper recognition of the keyboard keys I have to setup the region differently in each computer. However, I have been experimenting that once I change the region in one computer when I use the other it has change the previous setup I had made for this computer.

Anybody knows if it is a feature in Windows 8 that once you setup the region in one network computer it affects the others?. If this is the problem how I can perform a separate setup in each computer that do not alter the setup up of the others.

I will appreciate any advice.

Thanks.......