To connect a wireless mouse to your laptop, you'll need to pair it using Bluetooth, or connect it to the bespoke USB receiver it came with.
To connect a wireless mouse using its USB receiver, plug the USB receiver into a free USB port on your laptop and download the latest drivers if needed. Turn your wireless mouse on and it should connect automatically.
To connect a wireless mouse using Bluetooth, turn on your laptop's Bluetooth connection menu. Turn your Bluetooth mouse on, press the pairing button if applicable, and select the mouse from the Bluetooth menu to connect.
Other connectivity options are available for your laptop, and it's important to know how to connect your laptop to other devices like a TV.