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.
Use a wired USB keyboard and mouse during setup. During the setup process, use a USB mouse to speed up the setup of your Apple Wireless Mouse or Magic Trackpad. Keep a USB mouse connected to the computer until you've completed setting up the Apple Wireless Mouse.