Can I Play My Keyboard Through My Pc Can Someone Help Me With Fallout 3 Troubleshooting?

Can someone help me with Fallout 3 troubleshooting? - can i play my keyboard through my pc

I have Fallout 3 for PC and played through until I started with the gun a few guards. Then my computer will freeze and I had rebooted a blue screen of death, and when I try to play Fallout 3 I do not see my mouse and the game does not respond to keyboard input. Does anyone know a solution?