Acer extensa 5630/5330z/56030z/5630z/5230 series
model ms 2231 , when I turn it on the acer logo comes on then it goes black , then the words " operating systems not found . I don't know why as the last time when I turned it for it was working fine . I was going to do a factory reset and as I google how to do it I found this site , I really hope you can help me . Thank you very much for reading my question . Karen