Press the power button and wait for the startup sequence

To turn on an Apple computer, locate the power button and press it once. On most Mac models, the power button is in the top-right corner of the keyboard. On older iMacs and Mac minis, it may be on the back or side of the machine. Press firmly but do not hold it down — a single press is all you need.

After you press the button, you will see the Apple logo appear on the screen within a few seconds. The computer will then display a progress bar or spinning wheel as it starts up. This process typically takes 30 seconds to two minutes, depending on your Mac model and how much software is installed. Do not press the button again or unplug the computer during this time.

Once the startup is complete, you will see the login screen. If you are the only user on the computer, it may log in automatically. If multiple users are set up, you will need to select your account and enter your password.

Key Takeaways

  • The power button on most Macs is located in the top-right corner of the keyboard, though older models may have it on the back or side of the machine.
  • Press the power button once and wait — do not hold it down or press it repeatedly.
  • The startup process takes 30 seconds to two minutes and shows an Apple logo and progress indicator.
  • If your Mac does not start after 30 seconds, check that the power cable is firmly connected to both the computer and the wall outlet.

Where the power button is located on different Mac models

The location of the power button varies slightly depending on which Mac you own. On MacBook Air and MacBook Pro models from 2016 onward, the power button is integrated into the Touch ID sensor in the top-right corner of the keyboard. Press it once to wake the computer or turn it on from a powered-down state.

On older MacBook models (pre-2016), the power button is a separate key in the top-right corner of the keyboard, usually labeled with a power symbol. On iMac computers, the power button is typically on the back of the monitor, near the bottom-right edge. On Mac mini and Mac Studio models, the power button is on the back of the unit. On Mac Pro towers, the power button is on the front of the case.

If you cannot find the power button, check the manual that came with your computer or visit Apple's support website and search for your specific model. The manual will include a diagram showing the exact location.

What to do if your Mac does not turn on

If you press the power button and nothing happens, the first step is to check the power cable. Make sure the cable is plugged firmly into both the back of the computer and the wall outlet. If you are using a MacBook, the charger may not be connected properly — unplug it, wait five seconds, and plug it back in firmly.

If the cable is connected and the computer still does not respond, try a force restart. On a MacBook with an Apple silicon chip (M1, M2, M3, or newer), press and hold the power button for at least 10 seconds until you see the startup options screen. On older Intel-based Macs, press and hold Command + Control + Power until the screen goes black, then release and press the power button again.

If the computer still does not start after a force restart, the battery may be completely drained. Leave the MacBook plugged in for at least 30 minutes, then try again. If a desktop Mac does not respond after checking the power cable and attempting a force restart, contact Apple Support or visit an Apple Store for further diagnosis.

Understanding the startup screen and login process

When your Mac finishes starting up, you will see either a login screen or your desktop, depending on how the computer is configured. If you see a login screen with user account names or a password field, click on your account name and enter your password. If the computer is set to log in automatically, you will skip this step and go directly to the desktop.

The desktop is the main screen where you see the menu bar at the top, the Dock (a row of process icons) usually at the bottom, and your desktop background. From here, you can open applications, access files, and use your Mac normally. If you need to switch to a different user account, click the Apple menu in the top-left corner, select "Log Out," and then select the other account.

Restarting versus shutting down your Mac

Turning on your Mac is different from restarting it. A restart shuts down the computer completely and then turns it back on, which can fix software problems. To restart, click the Apple menu in the top-left corner, select "Restart," and confirm your choice. The computer will shut down and start up again automatically.

Shutting down your Mac closes all applications and turns off the computer completely, but does not turn it back on. To shut down, click the Apple menu, select "Shut Down," and confirm. When you are ready to use the computer again, press the power button to turn it on as described above.

Troubleshooting common startup problems

If your Mac starts but gets stuck on the Apple logo or a loading screen, wait at least five minutes before taking action — some startups take longer than expected, especially after a software update. If the screen remains frozen after five minutes, try a force restart using the method described in the "What to do if your Mac does not turn on" section above.

If your Mac starts but when ready shows a folder with a question mark, the computer cannot find the startup disk. This usually means the operating system needs to be reinstalled. Restart the computer and hold Command + R while it starts up to enter Recovery Mode, where you can reinstall macOS. If you are not comfortable doing this, contact Apple Support for guidance.

If your Mac starts but runs very slowly, it may be loading a large amount of data or running background processes. Give it several minutes to finish starting up completely. If slowness continues after 10 minutes, restart the computer and try again.

Frequently Asked Questions

Is it bad to leave my Mac on all the time?

Modern Macs are designed to run continuously, and leaving yours on does not damage the hardware. However, turning it off when you are not using it for extended periods saves electricity. Most users find it convenient to put their Mac to sleep instead of shutting it down completely — press Control + Eject (or Control + Power on newer models) to sleep without turning off.

Why does my Mac take so long to start up?

Startup time depends on how much software is installed and how many files are on your computer. Macs with many startup applications or older hard drives take longer to start. If startup is unusually slow, restart in Safe Mode by holding Shift while the computer starts up. This disables some background processes and can help identify if a specific process is causing the delay.

Can I turn on my Mac remotely?

Most Macs cannot be turned on remotely if they are completely shut down. However, if your Mac is in sleep mode, you can wake it by moving the mouse, pressing a key, or using another connected device. Some Mac models support Wake on LAN, which allows you to wake the computer over your network — check your Mac's Energy Saver settings to see if this option is available.

What should I do if my Mac will not turn off?

If the Shut Down command does not work, try a force shutdown by pressing and holding the power button for 10 seconds until the screen goes black. On older Macs, press Command + Control + Power and hold until the screen goes dark. Once the computer is off, wait 30 seconds before pressing the power button again to turn it back on.