Main ye pochna chahta hon k cmd prompt k zariye ek file ko dosre file k oper kaise paste karte hain . For example jab hum start menu ko rename karte hain to explorer.exe main modifications kar k us ko "c" main mojod explorer.exe par dobara copy karna hota hai agar waise he copy karen to nahin hota kyoun k explorer.exe working state main hota hai paste ka agar koi aur tariqa ho to plz bataye ga.