Here is the fix I had to do.
1. Go to Nvidia Control Panel
2. Click on "Manage 3D Settings"
3. Click on "Program settings"
4. Click "Add"
5. Search for NSUN4 in the list and click "add selected program"
6. Click on the drop down menu where it says "Auto Select: Integrated"
7. Change this to "High performance NVIDIA processor"
8. Exit and try the game again.

hey dude, how did you get arma to work again?