Windows failed to start.a recent hardware OR software change might be the cause.?

what you did is your deleted your os or operating system. so youll need to set up the os. your laptop should have come in with a disk. once your computer has the first peak pop up near f12 and itll bring you to a menu. brainwave the start up option and move the start up with disk to the top. put the os disk in and follow the instructions. next once everything is complete update everything by your laptop buy typing hardware in the search tablet, the click on device planner and click by example computer after something else pops aloft click on top of the the thing that pops up and click on the icon appears that has a common arrow. and thatll update that hardware.