crash on startup

every time i try to play minecraft it crashes i am getting really fed up with this ive been trying things for 2 days ive uninstalled reinstalled mc ive uninstalled and reinstalled java.  ive tried to find help on the guides but it seems the mods dont help much.  ive been driven so far that i want to chargeback on paypal for scamming because i just cannot play the game at all.

[0718/150323:INFO:GameCallbacks.cpp(193)] launcher/launcher (main) info Process closed with exit code -805306369