Hi, guys, I deleted files in USB by mistaken. I download Power Data Recovery and ready to recover. But the USB device cannot be identified. What should I do? thx any advice.

USB is the name of and describes the physical port, or connector, on your computer. For example, in your home you have electrical sockets in your wall. You connect your TV to this socket, or a lamp, or refrigerator, etc, to these sockets.

The USB port on your computer is a data socket of sorts, and so we need to know what it is that you are connecting to your USB port that doesn't appear to be working, please.