FLYER1'S PROFILE

Not sure if I do have 2 cards. I know I only have one dedicated video card. How can I check and what would I have to do to turn 1 off? Sorry I'm not that computer savvy.
Thanks...

Hi I'm new to the site. My first post.
I am having problems playing vx and vx ace games in fullscreen. The games open up in window mode but when I hit alt + enter or F5 nothing happens. I've checked around the website and can't find an answer to my problem. Tried a few things but nothing seems to work. I thought maybe someone would have an answer to my problem
i5-4460 processor
8GB system memory
NVIDIA GT 720 graphics
Windows 8.1
Thanks.....

Can someone please tell me how you get to ulaid forest. I know approx. where it is but can't find a way to get to it. Thanks