Minecraft Forums

So my game crashes after I press play, and displays the same error message each time, but I don't know what to do to fix my game. I have friends who usually know what went wrong, but they are clueless this time. I'm a new user of the forums, as of today, so please also give me a tip on how to lock or take this down when I get what I need to make minecraft work. Thanks! The error message follows:

Completely ignored arguments: [--nativeLauncherVersion, 307]
[12:00:21] [Client thread/INFO]: Setting user: xxPinheadxx
[12:00:23] [Client thread/INFO]: LWJGL Version: 2.9.4
[12:00:24] [Client thread/INFO]: Reloading ResourceManager: Default
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007fff40630398, pid=12004, tid=12028
#
# 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 0x00007fff40630398
#
# 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\K\AppData\Roaming\.minecraft\hs_err_pid12004.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

I uninstalled and reinstalled, and now it works, In hindsight I should have tried that before asking on the forums. I still don't know how to close this, lock it, whatever you do. Sorry!