Error al iniciar minecraft, crash

ayuda no puedo iniciar minecraft siempre me aparece este error y no se que es

Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\Users\PcJonker\AppData\Roaming\.minecraft\versions\1.7.2\1.7.2-natives-4767292563312\lwjgl.dll: Can't load IA 32-bit .dll on a AMD 64-bit platform
	at java.lang.ClassLoader$NativeLibrary.load(Native Method)
	at java.lang.ClassLoader.loadLibrary0(Unknown Source)
	at java.lang.ClassLoader.loadLibrary(Unknown Source)
	at java.lang.Runtime.loadLibrary0(Unknown Source)
	at java.lang.System.loadLibrary(Unknown Source)
	at org.lwjgl.Sys$1.run(Sys.java:73)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.lwjgl.Sys.doLoadLibrary(Sys.java:66)
	at org.lwjgl.Sys.loadLibrary(Sys.java:95)
	at org.lwjgl.Sys.<clinit>(Sys.java:112)
	at azd.J(SourceFile:2064)
	at net.minecraft.client.main.Main.main(SourceFile:36)
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release