Computer mein jo bhi data store kiya jata hai wo hard disk mein save kiya jata hai. bina hard disk ke computer chalana lagbhag namumkin hi hai kyunki hard disk mein hi windows aur dusre programs install hote hain. aapke computer me agar kabhi virus a jaye to wo apni ghuspaith hard disk mein hi karta hai isliye jab bhi aap naya windows install karwaye to hard disk jarur format karwa le lekin sirf C drive hi jisme aapke windows install hona ho. format se pehle backup jarur bana le..
