Minecraft won't launch at all.

I've clicked play, and it'll try to open the Minecraft window, but it's just white, then it closes and goes back to the launcher and gives me the following

Completely ignored arguments: [--nativeLauncherVersion, 286]
[09:52:08] [Client thread/INFO]: Setting user: GlueMountain
[09:52:08] [Client thread/INFO]: (Session ID is token:f5e97c60ac81446f9f697619714442a7:351b7e3870594440b4780fd2686c022e)
[09:52:11] [Client thread/INFO]: LWJGL Version: 2.9.4
[09:52:13] [Client thread/INFO]: Reloading ResourceManager: Default
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1. A fatal error has been detected by the Java Runtime Environment:
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2. EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x48273dc2, pid=7188, tid=6000
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3. JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)

4. Java VM: Java HotSpot(TM) Client VM (25.25-b02 mixed mode windows-x86 )

5. Problematic frame:

6. C [ig4icd32.dll+0x43dc2]
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7. Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
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8. An error report file with more information is saved as:

9. C:\Users\Toby\AppData\Roaming\.minecraft\hs_err_pid7188.log
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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.
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    Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release