I can't play Minecraft, every time I try it crashes?

Here's the crash log

[12:23:08] [Client thread/INFO]: Reloading ResourceManager: Default

Starting up SoundSystem…
Initializing LWJGL OpenAL
(The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
OpenAL initialized.

[12:23:09] [Sound Library Loader/INFO]: Sound engine started
[12:23:13] [Client thread/INFO]: Created: 512x256 textures/blocks-atlas
[12:23:13] [Client thread/INFO]: Created: 256x256 textures/items-atlas
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x28183e88, pid=4772, tid=5988
#
# JRE version: Java(TM) SE Runtime Environment (8.0_66-b18) (build 1.8.0_66-b18)
# Java VM: Java HotSpot(TM) Client VM (25.66-b18 mixed mode windows-x86 )
# Problematic frame:
# C [ig4dev32.dll+0x3e88]
#
# 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\Serginho\AppData\Roaming\.minec…
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
AL lib: (EE) alc_cleanup: 1 device not closed
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

Can someone please help me?

Try posting this on minecraft forums.