Help! MC Won't start up!:(

[GKLeatherCraft]

Hi guys, My little lad has been telling me a while that Crazy Craft won't load up, I thought he was just doing something wrong, go to play it myself, Nope, It won't start up, Tried normal minecraft (no forge, nothing) and still nothing, I get an error message I don't understand, Figured I'd ask here, see if anyone else has encountered anything like it! I thought it as going to be because my graphics card gave in recentely, and I'm running a back up of my back up card lol, But you never know, Thanks anyway!:

# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00000000690e0d01, pid=8408, tid=10600
#
# JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.25-b02 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C [atio6axx.dll+0xb0d01]
#
# 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\Gobra\AppData\Roaming\.minecraft\hs_err_pid8408.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

[Nahuun]

Uninstall java and minecraft and re-install both. Do Java first, then Minecraft. See if that works.

[ComputerNerd]

That text you gave mentions an error log, is there anything useful in that ?
Also the dll file mentioned in that message seems to be related to the AMD graphics drivers.
Could see if they are up to date, and reinstalling those.

[Nahuun]

That text you gave mentions an error log, is there anything useful in that ?
Also the dll file mentioned in that message seems to be related to the AMD graphics drivers.
Could see if they are up to date, and reinstalling those.

I had a similar problem and it ended up being a hiccup with a java update. But yes, being sure the drivers are up to date is important.