factory reset remove everything without backup

i factory reset my laptop removed everything windows 10 inspiron 14 3467, because i want to give my dell laptop to my sister but i do it without back up, my bad... suddenly all data are gone and all my drivers are out of date and red x appear at the right bottom of the screen, now my laptop is like zombie... i do every tutorial at youtube but it seem the problem didn't fix...

what should I do???