i thought that if i coould factory reset my acer aspire e1-431 it will become faster like before .. but i was wrong, when i finished my factory reset the monitor shows me black screen with cursor and a blink of a green screen which will you enter the password. and it will take almost half hour before it gets to text box which we write password. after that the desktop screen is so laggy and it will take 5 mins to open a web browser.. i've tried to refresh the o.s but its not working .. i also tried to disable the microsoft applications in the safe mode as i read in the article .. but its not working too... what should i do ?