How to get a Laptop to boot that will not Boot HELP PLEASE!!!!!?

I have an ACER with windows 7 operating system that when turned on will say:
windows failed to start a recent hardware or software change might be the cause. If windows files have been damaged or configured Incorrectly, start up repair can help diagnose and fix the problem. If power was interrupted during startup, choose start windows normally.
Launch startup repair Recommended
Description – fix problems that are preventing windows from starting.
I have tried this several times with no success it just freezes can anyone please help me what can I do to reset this back to factory settings or to restore I cant get to any other menu wont even start in safe mode any ideas at this point would help me open to trying anything.