mara pc man problm ha jb man pc on krti hun to sacreen blue hu jati ha..error a jata ha whna lekha ata ha select safe mode press f8.....jb pc restart huta ha to man f8 pres kr ka safe mode b select krti hun magr koi frk nh parta window b dobra kr ka chk ki ha 30 mint ka per wo hi problm man window 7 use kr rahi hun....help me