I have it too, but I didn't duel boot with Linux Mint. I use the Mint more. I liked 10. But the graphics on Mint just looks better to me. Maybe because it doesn't hog resources like Windows.
You see, the joke is that "dual boot" means you have two drives/partitions you boot from.
"Duel boot" would imply your boot drives will take 10 paces apart from one another, turn, and shoot each other, one dying and the other emerging victorious.