F2 is the hotkey in Windows, which can help you rename a file or folder. You need to simply select a file or folder, and press F2 (or Fn+F2) to rename it quickly. However, if that stops working, then ...
Most laptops have at least one Control (CTRL) key, and standard PCs usually have two. These keys are used to optimize the other keys on your keyboard by giving them additional functions, such as ...