thanks for your help it has works very fine for one week but when i decided to set a bios password i did but in the next day when i tried to start up my laptop it opens but only with Caps lock button blinks twice and the fan turns on but the screen remains blank So I checked the user manual and It turned out that an error from the Bios as you can see here Caps Lock key blink when starting notebook
so i went to the nearest maintenance shop where he installed the original BIOS once again Then sold it