Title says it all. When I start Minecraft and maximize the window, I can't open any world without getting this crash report:

Completely ignored arguments: [--nativeLauncherVersion, 286]
[12:08:50] [Client thread/INFO]: Setting user: ATMunn26
[12:08:50] [Client thread/INFO]: (Session ID is token:d49727b460234cbea6562084b79d475e:99ceb35e6e174f3d8ef65cfd05978bcb)
[12:08:51] [Client thread/INFO]: LWJGL Version: 2.9.4
[12:08:52] [Client thread/INFO]: Reloading ResourceManager: Default
[12:09:07] [Client thread/WARN]: Missing sound for event: minecraft:entity.snowman.ambient
[12:09:07] [Sound Library Loader/INFO]: Starting up SoundSystem...
[12:09:07] [Thread-5/INFO]: Initializing LWJGL OpenAL
[12:09:07] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[12:09:07] [Thread-5/INFO]: OpenAL initialized.
[12:09:07] [Sound Library Loader/INFO]: Sound engine started
[12:09:08] [Client thread/INFO]: Created: 1024x512 textures-atlas
[12:09:42] [Client thread/WARN]: Unable to resolve BlockEntity for ItemInstance: minecraft:shield
[12:09:50] [Client thread/WARN]: Unable to resolve BlockEntity for ItemInstance: minecraft:shield
[12:09:53] [Server thread/INFO]: Starting integrated minecraft server version 1.9-pre1
[12:09:53] [Server thread/INFO]: Generating keypair
java.lang.NullPointerException
at vo.a(SourceFile:412)
at vq.a(SourceFile:215)
at azr.a(SourceFile:52)
at lp.b(SourceFile:142)
at bym.a(SourceFile:98)
at bym.j(SourceFile:130)
at net.minecraft.server.MinecraftServer.run(SourceFile:427)
at java.lang.Thread.run(Thread.java:745)
[12:09:53] [Server thread/INFO]: Preparing start region for level 0
[12:09:54] [Server thread/INFO]: Preparing spawn area: 22%
[12:09:54] [Server thread/WARN]: Keeping entity Cow that already exists with UUID e9e4b0dc-c82d-4688-8e22-46ae81827e81
[12:09:55] [Server thread/INFO]: Changing view distance to 16, from 10
[12:09:56] [Server thread/INFO]: ATMunn26[local:E:9df33743] logged in with entity id 252 at (-503.45405726639467, 89.86246729483926, 58.56664500340494)
[12:09:56] [Server thread/INFO]: ATMunn26 joined the game
[12:09:57] [Server thread/WARN]: Keeping entity Cow that already exists with UUID f0b42e8d-cb27-43bf-9851-853773528523
[12:09:58] [Server thread/WARN]: Keeping entity Wolf that already exists with UUID 6ed0b7d3-c912-49a3-b094-66abacea55c8
[12:09:58] [Server thread/WARN]: Keeping entity Wolf that already exists with UUID 5a53d8ab-499e-4e35-b5fb-a4bbf87a3edb
[12:09:58] [Server thread/WARN]: Keeping entity Wolf that already exists with UUID c6a152c0-2902-4960-9511-d38cbfab91a0
[12:09:58] [Server thread/WARN]: Keeping entity Wolf that already exists with UUID 456fc797-0385-454f-8e84-74b23a19132f
[12:09:58] [Server thread/WARN]: Keeping entity Cow that already exists with UUID b14c219a-5505-45b3-b745-bfff5b1ae19e
[12:09:59] [Server thread/WARN]: Keeping entity Chicken that already exists with UUID 977f9afe-8571-4e2e-bfea-4d01487d8115
[12:10:00] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4155ms behind, skipping 83 tick(s)
#

1. A fatal error has been detected by the Java Runtime Environment:
   #
2. EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007fff32e32177, pid=5976, tid=5192
   #
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+0x12177]
   #
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[Censored for privacy]\MC Snapshots\hs_err_pid5976.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