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[19:19:56 INFO]: Looking for old natives & assets to clean up...
[19:19:56 INFO]: Unpacking natives to C:\Users\enriq_000\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4-natives-104081349248253
[19:19:57 INFO]: Launching in C:\Users\enriq_000\AppData\Roaming\.minecraft
[19:19:57 INFO]: Half command: C:\Program Files (x86)\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -Djava.library.path=C:\Users\enriq_000\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4-natives-104081349248253 -cp C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.2\authlib-1.2.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1-nightly-20131120\lwjgl-2.9.1-nightly-20131120.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1-nightly-20131120\lwjgl_util-2.9.1-nightly-20131120.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4.jar net.minecraft.client.main.Main
[19:19:58 INFO]: Client> Error occurred during initialization of VM
[19:19:58 INFO]: Client> Could not reserve enough space for object heap
[19:19:58 INFO]: Client> Picked up _JAVA_OPTIONS: -Xms512m -Xmx1024m
[19:19:58 ERROR]: Game ended with bad state (exit code 1)
[19:19:58 INFO]: Deleting C:\Users\enriq_000\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4-natives-104081349248253
[19:19:58 INFO]: Ignoring visibility rule and showing launcher due to a game crash


I dont have any texture packs

Take this out of your profile Java arguments: -Xmx512M

Quote from gerbil

Take this out of your profile Java arguments: -Xmx512M

dont works (i'm spanish)

Post the new log.

If it still has

Half command: C:\Program Files (x86)\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M

you didn't do it right.

Quote from gerbil

Post the new log.

If it still has
you didn't do it right.

[20:56:03 INFO]: Looking for old natives & assets to clean up...
[20:56:03 INFO]: Unpacking natives to C:\Users\enriq_000\AppData\Roaming\.minecraft\versions\1.7.2\1.7.2-natives-1976805541060
[20:56:04 INFO]: Reconstructing virtual assets folder at C:\Users\enriq_000\AppData\Roaming\.minecraft\assets\virtual\legacy
[20:56:06 INFO]: Launching in C:\Users\enriq_000\AppData\Roaming\.minecraft
[20:56:06 INFO]: Half command: C:\Program Files (x86)\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Djava.library.path=C:\Users\enriq_000\AppData\Roaming\.minecraft\versions\1.7.2\1.7.2-natives-1976805541060 -cp C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\enriq_000\AppData\Roaming\.minecraft\versions\1.7.2\1.7.2.jar net.minecraft.client.main.Main
[20:56:07 INFO]: Client> Error occurred during initialization of VM
[20:56:07 INFO]: Client> Could not reserve enough space for object heap
[20:56:07 INFO]: Client> Picked up _JAVA_OPTIONS: -Xms512m -Xmx1024m
[20:56:07 ERROR]: Game ended with bad state (exit code 1)
[20:56:07 INFO]: Deleting C:\Users\enriq_000\AppData\Roaming\.minecraft\versions\1.7.2\1.7.2-natives-1976805541060
[20:56:07 INFO]: Ignoring visibility rule and showing launcher due to a game crash

Okay, you've got something weird going on, because now you have the defaults. Did you change something recently? (java update?)
Your computer shouldn't have trouble allocating 512-1024m of memory for heap.

Try a reboot, and if it still doesn't work, post your dxdiag information (which provides lots of information about your computer specifics).

Maybe reinstall minecraft