Macs are nice computers, but they're not without their issues that can spur up at random times. Fortunately, troubleshooting problems on a Mac isn't incredibly difficult and there are tons of simple steps you can take as a Mac user before calling AppleCare for support.
One of the easiest troubleshooting steps is resetting your Mac's NVRAM, a step which can solve an array of problems. In this tutorial, we'll explain what the NVRAM is responsible for and how to reset it to fix common problems.