So my minecraft always stops loading at 80-90% and stops responding

So since y'all are confusing and don't explain how to fix bugs, I'll make my own post. every version stops responding at like 80% and I'm peeved about it as one would be. I can't open the crash report. It's all very confusing. I had mods and texture packs and downloaded worlds but I took them all out. Please help me.