Minecraft Forums

Minecraft has recently started crashing whenever I load the game, otherwise, it's when I enter a world (singleplayer and multiplayer). I think this started happening after I installed Minecraft Windows 10 Edition,
and now Java Edition will not work. I get this log when the world doesn't load -

[11:07:00] [Client thread/INFO]: Setting user: enox
[11:07:02] [Client thread/INFO]: LWJGL Version: 2.9.4
[11:07:02] [Client thread/INFO]: Reloading ResourceManager: Default
[11:07:03] [Sound Library Loader/INFO]: Starting up SoundSystem...
[11:07:03] [Thread-3/INFO]: Initializing LWJGL OpenAL
[11:07:03] [Thread-3/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[11:07:03] [Thread-3/INFO]: OpenAL initialized.
[11:07:03] [Sound Library Loader/INFO]: Sound engine started
[11:07:07] [Client thread/INFO]: Created: 1024x512 textures-atlas
[11:07:09] [Client thread/INFO]: Narrator library for x64 successfully loaded
[11:07:22] [Server thread/INFO]: Starting integrated minecraft server version 1.12.2
[11:07:22] [Server thread/INFO]: Generating keypair
[11:07:22] [Server thread/INFO]: Loaded 488 advancements
[11:07:22] [Server thread/WARN]: Unable to find spawn biome

Help?

Use the old launcher.

didn't work.

Edit: nevermind, I got it to work. Is there a way to get it to work with the newer launcher?

I got it to work with the new launcher, but now I'm having insane lag and I have no idea how to stop it. ???

Post a screenshot with F3 enabled and your JVM arguments.