Some of you never turn off your point of sale system. Here is a tip, we recommend that at least once a week you turn off every computer for at least a minute. What this does is flushes your system, including the RAM, makes sure that all processes and services are closed.
Also, do this if a computer starts going slow or with a laptop if its fan starts going crazy fast.
It often works with the computer components like printers and scanners too.
If you have a problem, the first step make this your first step.