For some reason, I cannot hit the control and "D" key at the same time in any of my programs or games. I am most concerned about this problem for my games. For example, I cannot crouch and move to the right in CS:GO, or run and move to the right in Minecraft. I also cannot use my delete key, so I cannot delete folders or files by simply hitting the key. However, I AM able to use it if I hit the windows key + delete or shift key + delete. Please help me!