Alright, So I just bought skyrim on steam and finished downloading the dawnguard dlc along with the HD texture packs. I then launched the game and started a new game.
After about less than 3 mins into the game, Skyrim automatically crashes to desktop.

PLEASE HELP!!!! I don't want to spent 50bucks on a game that doesn't even let me play it.

I've tried the sound fix and 4GB ram fix, none worked.

PS: The game is still free of any mods.