If a keyboard is disconnected while a key is being held down (either intentionally or accidentally), when the keyboard is reconnected, it may not respond, or it may act as if the key is still held down. This is mainly an issue if it was the Ctrl, Shift, Alt, or Windows key being held down.
This can happen if the keyboard is unplugged from the USB port while a key is held down, or if a laptop or tablet is undocked while a key is held down on a keyboard connected to the dock through USB.
This can happen if the keyboard is unplugged from the USB port while a key is held down, or if a laptop or tablet is undocked while a key is held down on a keyboard connected to the dock through USB.