dosto mary ek friend ny ksi sy ek laptop lya ha,lakin us main pehly he bohat sara virus tha. mgr ab masla yeh ha k bar bar restart ho raha ha. window loading krty he restart ho jata ha.or window instal krny k liye cd sy boot b nahin ho raha. bios k liye f2 ka option data ha.agar f2 press krin to bios main enter hony k liye pass mang raha ha.jb k mary frnd ko pass ka pata nain ha. ......... any expert plz