There are many reasons why you might need to reboot a computer. Maybe you’re having trouble logging in, or the system is running slowly. In any case, rebooting is a simple way to solve many common problems.

To reboot a computer, first make sure it’s turned off. If it’s not, hold down the power button until the machine turns off. Next, turn the computer on and wait for the startup screen to appear. Once the computer is ready, click the Start button and select Restart.

The computer will restart and shut down automatically. Once it’s turned back on, you’ll be …