so i had the exact same problem but i have 2 laptops one that's about to crash and one that i'm using right now to type this so i had a fresh install of windows 7 because there was a error before and so i did a fresh install and now it wouldn't run but i found a fix my other laptop had it installed and it ran fine so copied the runtime and game folder and deleted my current ones and it ran fine
so i had the exact same problem but i have 2 laptops one that's about to crash and one that i'm using right now to type this so i had a fresh install of windows 7 because there was a error before and so i did a fresh install and now it wouldn't run but i found a fix my other laptop had it installed and it ran fine so copied the runtime and game folder and deleted my current ones and it ran fine
link to fix: https://www.dropbox.com/s/3h5yl0ipz1mw0rx/Minecraft Fix Runtime Error.zip?dl=0