If your PC is multi-user and with the combination of right-left handed people then they might need to configure mouse button through control panel to match their habit. The manual process is time consuming which may harm your work process. So how do we recover from it?

MouseMixer is a tiny tool which give you great result here. Just install this and you can shift your primary mouse button in just one click. It stays in tray and help you and your users to fixed their habit in a second. Just give it a try, it surely help you.