When I do anything. e.g. placing a block or issuing a command, I instantly crash.

Completely ignored arguments: [--nativeLauncherVersion, 286]
[11:05:53] [Client thread/INFO]: Setting user: CreativeGuy2013
[11:05:53] [Client thread/INFO]: (Session ID is token:df81c90407634f2cb3b06b0b72528021:ed751a846397475c9d89141cc2b1cd8f)
[11:05:53] [Client thread/INFO]: LWJGL Version: 2.9.4
[11:05:53] [Client thread/INFO]: Reloading ResourceManager: Default
[11:05:54] [Sound Library Loader/INFO]: Starting up SoundSystem...
[11:05:54] [Thread-5/INFO]: Initializing LWJGL OpenAL
[11:05:54] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[11:05:54] [Thread-5/INFO]: OpenAL initialized.
[11:05:54] [Sound Library Loader/INFO]: Sound engine started
[11:05:55] [Client thread/INFO]: Created: 512x512 textures-atlas
[11:05:57] [Server thread/INFO]: Starting integrated minecraft server version 15w40b
[11:05:57] [Server thread/INFO]: Generating keypair
[11:05:58] [Server thread/INFO]: Preparing start region for level 0
[11:05:58] [Server thread/INFO]: Changing view distance to 6, from 10
[11:05:58] [Server thread/INFO]: CreativeGuy2013[local:E:f4a0ec64] logged in with entity id 0 at (15.27215580016043, 4.321352411923289, 6.211505511026907)
[11:05:58] [Server thread/INFO]: CreativeGuy2013 joined the game
[11:05:58] [Server thread/INFO]: Saving and pausing game...
[11:05:58] [Server thread/INFO]: Saving chunks for level 'ThatBowTho 1.0.0'/Overworld
[11:05:58] [Server thread/INFO]: Saving chunks for level 'ThatBowTho 1.0.0'/Nether
[11:05:58] [Server thread/INFO]: Saving chunks for level 'ThatBowTho 1.0.0'/The End
[11:06:21] [Server thread/INFO]: [CreativeGuy2013: 289 blocks filled]
[11:06:21] [Client thread/INFO]: [CHAT] 289 blocks filled
[11:06:35] [Server thread/INFO]: [CreativeGuy2013: 256 blocks filled]
[11:06:35] [Client thread/INFO]: [CHAT] 256 blocks filled
#

1. A fatal error has been detected by the Java Runtime Environment:
   #
2. EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffd1fdc628c, pid=8092, tid=4832
   #
3. JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
4. Java VM: Java HotSpot(TM) 64-Bit Server VM (25.25-b02 mixed mode windows-amd64 compressed oops)
5. Problematic frame:
6. C [ig75icd64.dll+0x55628c]
   #
7. Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
   #
8. An error report file with more information is saved as:
9. C:\Users\Player\AppData\Roaming\.snapshot\hs_err_pid8092.log
   #
10. If you would like to submit a bug report, please visit:
11. http://bugreport.sun.com/bugreport/crash.jsp
12. The crash happened outside the Java Virtual Machine in native code.
13. See problematic frame for where to report the bug.
    #
    AL lib: (EE) alc_cleanup: 1 device not closed
    Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release