I am also a newbie so this is not an expert’s answer but let’s try to help ! lol
Do you want to change the region or really make it region free ?
You can change the region in your Device manager. I think there is usually a limited number of times you can change it so don’t play with it too much.
To turn it Region Free try: http://www.cdmediaworld.com/hardware/cdrom/dvd_utils_2.shtml#Drive%20Region%20Info
There is a program called DVD Region Free, you can try it free for 30 days.
I’m not sure it’s really good, It didn’t solve my problem.
This is just a newbie non-expert answer.
Did you made a search on the forum, I guess this is the kind of question that must have been asked before…