Good news! No driver needed!
Make sure you have good batteries in the mouse, press the little button on the USB dongle receiver while plugged into your laptop/desktop then press the little button under the bottom of the mouse to sync to the dongle. Done, if it is still not working the mouse may have an issue or the USB dongle may have a problem.
If you have a mouse with a nano receiver then there is no need to sync the mouse.
