Computer mice have been around longer than personal computers, and the basic design doesn’t look like it’s going away anytime soon. When your mouse starts acting up or stops working altogether, it may just need some simple maintenance.
If your mouse has a rubber ball, you can probably release it by rotating a locking ring that holds it in place. Look for an arrow telling you which way to push or twist the locking ring (see A).
Remove the ball and carefully clean it with a lint-free cloth or soap and water. Dry it carefully.