Dear Mojang i don't know why minecraft is crashing.Can you please help me.

Put the summary of the bug you're having here i can't go in minecraft because it keeps on crashing. i don't know why it works in my uncles labtop.

*What I expected to happen was...:getting in minecraft not getting to to crash
Describe what you thought should happen here
can mojang please help me
*What actually happened was... is crashed
Describe what happened here
i tried to log in but is keeps on crashing
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
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