With an expanse of screen, it can feel like you are dragging your mouse for ages, so study these handy keyboard shortcuts to make your life easier.If you scroll down, there’s a Multiple displays section. Right-click the task bar, and choose Taskbar settings to make changes. Windows will automatically extend your task bar across your monitors, but you can tweak its appearance and behavior.Experiment with display settings in Windows or MacOS, or via your graphics card control panel, to try to match up the brightness and color settings for your monitors.Just press and hold the power button on your Mac until it turns off.Here are a few final tips to help you get the most from your dream multiple monitor setup. If you're selling, giving away, or trading-in your Mac and want to leave it in an out-of-box state, don't use the setup assistant or your previously connected Bluetooth devices, if any. After restart, a setup assistant guides you through the setup process, as if you're setting up your Mac for the first time.After joining a network, your Mac activates.To select a Wi-Fi network, use the Wi-Fi menu in the upper-right corner of the screen. You might be asked to select a Wi-Fi network or attach a network cable.When reconnecting to a Bluetooth keyboard, you're asked to choose a language. If the accessory doesn't connect within 30 seconds, turn the accessory off and back on. If it needs to reconnect to a Bluetooth accessory such as a keyboard or mouse, you might be asked to turn on the accessory. Your Mac restarts and shows a black screen or progress bar.Click Erase All Content & Settings to confirm that you want to proceed.If you're asked to sign out of Apple ID, enter your Apple ID password and click Continue.Click Continue to allow your settings, media, data, and the other listed items to be removed.Or click Continue to proceed without making a new backup. If you're asked to back up your Mac before resetting it, you can open Time Machine and back up to an external storage device.Enter the password that you use to log in to your Mac, then click OK. An erase assistant asks you to sign in with your administrator credentials.

After choosing Erase All Content and Settings, follow these steps to continue:

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