Can someone help me correct my stupid mistake?

So I got a VR headset today and while trying to make it work on my pc I did some messing around in the UEFI settings. In my unending wit I accidentally seem to have disabled my GPU because I misread what the setting would do. I am an absolute noob in all matters computer and so am at a loss about what I have to do to make my pc work correctly again. Any help will be welcome.