Minecraft Crash OpenAL
Solution 1:
The error message indicates that either loading OpenAL failed or there's no OpenAL installation on your system.
OpenAL is a driver interface similar to OpenGL, just for your audio hardware.
Look in C:\Windows\System32 and see if there's a file called OpenAL32.dll. If it isn't, you don't have it installed.
You can download it from the official OpenAL website. (Make sure to grab the Windows installer, not the SDK.)