The Microsoft Wireless Optical Mouse 2.0 is a useful and portable alternative to standard wired mice. Optical mice do not require a mouse pad, while wireless mice may be used at a distance. Typically, wireless mice employ plug-and-play drivers, so you don't need to install any software. As well, the simplicity of the device and limited number of components mean that troubleshooting problems to repair functionality is fairly straightforward.
Check and replace the batteries, if necessary, by opening the top of the mouse. Press on the button with the star symbol while prying up on the mouse casing, to access the battery compartment. Once you have installed fresh, working batteries, the LED on the underside of the Microsoft Wireless Optical Mouse 2.0 will illuminate.
Find a compatible USB port by plugging the wireless receiver into multiple ports until your computer makes a sound and indicates your device is ready. Some USB ports may not be configured for plug-and-play devices, so you may have to try several ports.
Refresh the wireless connection by pressing and holding the "Connect" buttons on the underside of the Microsoft Wireless Optical Mouse 2.0 and the wireless receiver. When the connection is interrupted, on-screen mouse movement may become jerky or erratic.