Hello Friends

Mere Computer Ka time Stuck hogaya hai..! Auto Update bhi ker chuka hun.
Manual bhi Update ker chuka hon..! Bios Cell & Bios mai Ja ker bhi time n Date Set ker Chuka hon..! Her baar computer Start hote hi 3 din pehle ki Date show kerta hai .. Or time Bhi Change hojata hai ..! ??? need Expert Help