How to fix this bsod stop error?

I recently downloaded a game from an unknown source I was playing it for about the fourth time when my computer froze. I held the power on down to turn it off and when my comp started back up I got a bsod error with the code 0x000000f4. Now when I try to reboot in safe mode I get this bsod error but when I just login normally after about 30 second or so I get two gray dialog boxes. One says something failed to initialize and the other one shows a countdown until my comp reboots and gives this error 1073741819.when I log in normally I try going into my program files and deleting the game folder but the error messages always come up before the file can delete. So I am stuck I have looked at other sources and some say to run certain programs but I can't run a program if my computer will only function normally for a few seconds. What can I do??