as salamu alikum,

sir mery paass hp 7900 machine hay us main windows 7 use kar raha hon kuch dino pehly se us main jab bhi on karo date not set ka error ata tha main setup se date time update kar leta tha phir yeh hua k time update karny k bawajoud system time on honey k bawajod system time agye nhi barhta pechy he reh jata hay main ney us ki cmos batrry bhi replace kar k new laga li hay pleas solve this issue thanx