Let’s explore a few common computer myths and talk about the reality. The basic idea is that a desktop cluttered with icons will slow down your computer. Put simply, if you’re trying to save energy, you’re better off doing things like replacing your bulbs with LEDs or air drying your clothes. Also, from a security perspective, a computer that’s fully shut down is more secure (especially if the hard drive is encrypted). “If you replace your computer every three years, as most users do, then you probably needn’t worry about whether your SSD will last as long as your computer.