bhai mujhe ye janna hai ki window update kya aur iska fayda kya hai maine ragistry cleaner software dala hua hua hai maine usko run kiya bhut sare window aur dusre file missing bata rhe phir delete ka option aaya to mai ne delete mar diya usse koi problem to nhi hogi aur backup kaise karte hai pls pura detail me bataye jzakallah khair