Robocopy (Robust File Copy) is a popular, powerful and built-in command-line directory and file replication command for Microsoft Windows. It allows users to copy files, directories, and even drives from one location to another. I’ve developed a free to use GUI (graphical user interface) called “RocketCopy” for those who want a simple interface with all the necessary options to leverage the power of RoboCopy, without manually writing commands in the Command Prompt.