Exit code -805306369

This exit code is caused when the client runs out of memory.

This can be caused by the JVM not being allocated enough memory, a bug in the game, using client modifications or a dependency of the game that has unexpectedly terminated.

How to fix this

• See this article on instructions to allocate more memory.
• Run an ADWCleaner scan
• Run a Malwarebytes scan
• Reinstall minecraft to ensure you have no client mods.
• Check your System Event Log for issues.