whenever i launch a version of minecraft lower than 1.8 my game crashes

Put the summary of the bug you're having here
Firstly sorry about the version it isn't exactly true... my game is affected by the versions before 1.8. whenever I launch a earlier version my game chrashes.
what you expected to happen was...:*
Describe what you thought should happen here
I should be able to launch and play minecraft on 1.7.10
*What actually happened was...:*as soon as I join a single player/server I crash
Describe what happened here
right after the logging in menu appears the game closes and a rash menu appars
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...launch 1.7.10 (or lower)
3. ...join a server