MacBook Pro Trackpad Suddenly Stopped Working Completely The trackpad on my Macbook Pro of 2 years has suddenly stopped working out of blue.

The trackpad doesn't move, respond to any gestures nor do any clicks work. This is really frustrating as I used gestures a lot to navigate around my laptop, and even though I use a bluetooth mouse it makes using my laptop unnecessarily laborious.

Does anyone know what may be causing the problem, and any solutions?
The trackpad is connected over USB - so try these things before seeking hardware service:


Check System Information app like the image below
Disconnect all external devices and restart to reset the NVRAM (that causes the hardware tree to repopulate)
Make a system backup and possibly reinstall the latest combo update / or install a new OS on an external drive to ensure it's not a problem with the OS / software