Method 2: Disable or uninstall any previously installed keyboard softwareDisable any other keyboard control software installed on this computer and then try reassigning the keys. Connect the receiver directly to a port on the computer. Note Bypass any port replicators, USB hubs, KVM switches, and so on. (This method tests for port-specific issues.) Method 1: Try a different USB PortConnect the keyboard to a different USB port, and then check the behavior of the keyboard. Proceed to the next method if the problem still occurs.
Try each of the Methods below in order, testing the keys after each method.
