My wireless mice won't work. How can I fix my computer so they do?

I have never gotten beyond “novice”, so if you will help I will appreciate it. I have a HP Pavillion dv5237 notebook. I have gone into the “mouse” program and I don’t know what to do. I am left handed, but I can see that it is set for right-handed.

I have several Microsoft wireless mice and all of a sudden they quit working.

Hi and Welcome!

could you please try a wired mouse?
With wireless mice, you need to make sure that the batteries are full, and that the mice are matching to the transmitter that is connected to your computer.

For mouse settings, you may have a look here: The “Switch primary and secondary buttons” option will make your pointing device “left-handed”.