If you’re experiencing a single mouse that isn’t able to move the cursor, then this is a common hardware problem that can be fixed. If it’s a built-in mouse on your laptop, try removing the battery from the apparatus and see if it returns to normal. Most desktop mice will have two programmable buttons on each side of the scroll wheel. In older mice, one might need to push an additional switch or button before pressing any other button in order for secondary functionality to work correctly also. If neither of these fixes your issue, it may be an indication of worn down or old components inside your electronic device and could indicate quicker than average degrading due to age over time with usage over time which would require replacement parts.