sir/mam my service tag-B3D35BS i have some problem in my laptop dell s-15 mike ming.here dvd writer not function properly dvd take more time to read or may not read? also windos take more more time to solve the comand .my add-sunil k choudhary, A N M Medical College Hospital,gaya .bihar sidhartha hostel room no-21 .pin no 823001.my email sunil04in@gmail.com .mobile no-9304511977