How to boot macbook air into diagnostic mode?

1. Turn on your Mac and continue to press and hold the power button as your Mac starts up.
2. Release when you see the startup options window, which includes a gear icon labeled Options.
3. Press Command (⌘)-D on your keyboard.

Subsequently, how do I run a diagnostic on my MacBook air?

1. Start up your Mac.
2. Continue to press and hold the power button as your Mac turns on.
3. Release the power button when the startup options window appears.
4. Press Command-D to run the Diagnostics.
5. Apple Diagnostics will run automatically. When it is complete, it will present a list of the problems encountered.

People ask also, how do I force my MacBook Air to boot? Press and hold down the Command (⌘) and Control (Ctrl) keys along with the power button (or the ‌Touch ID‌ / Eject button, depending on the Mac model) until the screen goes blank and the machine restarts.

Quick Answer, how do I know if my Mac is running properly? Turn on your Mac, then immediately press and hold the D key on your keyboard. Keep holding the D key until you see the Apple Hardware Test icon. Select your language and click the right arrow, then press the “Return” key. To begin testing, click the Test button, press T, or press “Return.”

As many you asked, how do I run diagnostics on MacBook Air M1? To start Apple Diagnostics on MacBook Pro with Apple M1 chip, restart the computer, press and hold the power button for 10 seconds to open Startup Options, then hold Command-D to enter Diagnostics mode.Hold down all of these keys: Command, Option (Alt), P and R, and turn on the Mac (it’s the same keys to reset the PRAM). Keep holding the keys down until you hear the Mac restart again. Listen for a second reboot, and then release the keys.

How do I restore factory settings on my MacBook air?

1. Hold down the Command and R keys on the keyboard and turn on the Mac.
2. Select your language and continue.
3. Choose Disk Utility and click Continue.
4. Choose your startup disk (named Macintosh HD by default) from the sidebar and click the Erase button.

How do you turn on a MacBook Air 2020?

Instead, the power button is embedded in the Touch ID button, right next to the Touch Bar. Pressing on the button in the top-right corner will turn on your MacBook.

Why is my Mac not responding?

Reboot your Mac If you can’t Force Quit an unresponsive application, then it’s time for a reboot. … How to reboot a Mac that is not responding: Hold down the power button for several seconds. If that doesn’t work, Press the Control-Command keys down, then press the Power button.

How do I manually restart my MacBook?

1. Press the power button (or press Control+Eject) and, when a dialog box appears, click the Restart button.
2. Choose the Apple key and then click Restart.
3. Press Control+Command+Eject (or Control+Command+Power button).

How do I check my CPU speed on a Mac?

1. To view processor activity over time, click CPU (or use the Touch Bar).
2. To view current processor activity, choose Window > CPU Usage.
3. To view recent processor activity, choose Window > CPU History.

How do I make sure my Mac is running smoothly?

1. Clean up system files and documents. A clean Mac is a fast Mac.
2. Detect & Kill Demanding Processes.
3. Speed up startup time: Manage startup programs.
4. Remove unused apps.
5. Run a macOS system update.
6. Upgrade your RAM.
7. Swap your HDD for an SSD.
8. Reduce Visual Effects.

How do I check my Mac performance?

1. To access the Activity Monitor go to Finder, Applications, Utilities. Click Activity Monitor.
2. Choose the process category you’d like to check on. You can choose from CPU, Memory, Energy, Disk, Network, and Cache.
3. You can then choose how much information to display and in what format.

How do I run Apple Diagnostics?

1. Shut down the Mac you want to test and connect your ASD USB drive.
2. Press the power button then immediately press and hold the Option key.
3. If you did it correctly, you’ll see a boot menu.
4. Wait for ASD to initialize, then click Test.

How do I reset the SMC on my macbook air?

1. Choose Apple menu > Shut Down and wait for your Mac to shut down.
2. Press Shift-Control-Option on the left side of the built-in keyboard, then press the power button at the same time.
3. Release all keys.
4. Press the power button again to turn on your Mac.

How do I run a network diagnostic on my Mac?

Press and hold the Option key, click the Wi-Fi status icon in the menu bar, then choose Open Wireless Diagnostics. Follow the onscreen instructions to analyze your network connection. After the analysis is complete, click the Info buttons in the Summary pane to learn more about each item in the list.

Why is my MacBook air stuck on the loading screen?

Shut the Mac down, usually by pressing the power button; Now press the Command, Option, R, P keys for at least 20 seconds (sometimes 30 might produce better results); Your Mac should restart automatically and if it gets past the loading screen then the problem is solved.