Northern Ireland is the smallest of the four countries of the United Kingdom in terms of both area and population, containing 2.9% of the total population and 5.7% of the total area of the United Kingdom.
All Microsoft mouse wireless USB devices include a USB connector called a receiver. If your wireless mouse did not include the receiver, the most likely reason is that the mouse is a Bluetooth device. Therefore, some steps in this article may not apply. Try to connect the receiver to a different port.
Unpackage the wireless products from the box and remove any protective material. However, do not be tempted to fit batteries to the keyboard or the mouse at this stage. Turn the computer off that the products will be used with and unplug the wired keyboard or the mouse or both, if necessary. Most keyboards and mice are connected to computers via USB ports these days, but older systems may have a DIN type of socket known as a PS/2 port.