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Im not sure what causes this problem, it happens when i either load up a world or try to join a server. Any help is greatly appreciated.

Crash info:

[18:48:51] [main/INFO]: Setting user: MrAlexpie
[18:48:51] [main/INFO]: (Session ID is token:5f63bbcc28c34e8491a25ef792d9b67f:892d1028e30e42bfbc2bc53d8916f2f1)
[18:48:51] [Client thread/INFO]: LWJGL Version: 2.9.1
[18:48:54] [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.

[18:48:55] [Sound Library Loader/INFO]: Sound engine started
[18:48:56] [Client thread/INFO]: Created: 512x256 textures/blocks-atlas
[18:48:56] [Client thread/INFO]: Created: 256x256 textures/items-atlas
[18:49:12] [Server thread/INFO]: Starting integrated minecraft server version 1.7.10
[18:49:12] [Server thread/INFO]: Generating keypair
[18:49:12] [Server thread/INFO]: Preparing start region for level 0
[18:49:13] [Server thread/INFO]: MrAlexpie[local:E:920163ca] logged in with entity id 209 at (305.82820459091334, 63.0, 224.65695911607781)
[18:49:13] [Server thread/INFO]: MrAlexpie joined the game
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000000000e0fae85, pid=7616, tid=8064
#
# JRE version: Java(TM) SE Runtime Environment (7.0_67-b01) (build 1.7.0_67-b01)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (24.65-b04 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C [ig7icd64.dll+0x4aae85]
#
# 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\Alex\AppData\Roaming\.minecraft\hs_err_pid7616.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.
#
[0x7FFE7758CFF0] ANOMALY: meaningless REX prefix used
AL lib: (EE) alc_cleanup: 1 device not closed

[error occurred during error reporting , id 0xc0000005]

http://pastebin.com/p7j4r28u

DxDiag Log for you

This has been fixed with the 1.8 update for me.