Minecraft 1.8 won't launch?

My minecraft 1.8 won't launch. It opens the launcher and it downloads and It opens the Minecraft 1.8 and then closes and opens the Launcher again! I don't know how to fix it! Here is a Output Log:
[21:24:32] [Client thread/INFO]: Setting user: vanson530
[21:24:32] [Client thread/INFO]: (Session ID is token: fb6ef98102f940338102c1b58805eff3:1e9650282eab4b5aaadf14cc660f623f)
[21:24:49] [Client thread/INFO]: LWJGL Version: 2.9.1
Execution protection violation
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x2bb99100, pid=9252, tid=9072
#
# JRE version: Java(TM) SE Runtime Environment (7.0_67-b01) (build 1.7.0_67-b01)
# Java VM: Java HotSpot(TM) Client VM (24.65-b04 mixed mode windows-x86 )
# Problematic frame:
# C 0x2bb99100
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\Evan.owner-PC\AppData\Roaming\.minecraft\hs_err_pid9252.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/.../crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#