What a complete MacBook reset does and why you might need one
A complete reset of your MacBook erases everything on the drive — all files, applications, settings, and user accounts — and reinstalls a fresh copy of macOS. This is different from restarting your computer or signing out of your Apple account. When you reset completely, the drive itself is wiped, and you start over as though the MacBook just came from the factory.
You might reset your MacBook before selling it, giving it away, or handing it to someone else. You might also reset it if malware has infected the system so thoroughly that you do not trust the existing installation, or if the operating system has become so corrupted that normal troubleshooting will not fix it. A reset is also useful if you have accumulated years of settings, cached data, and background processes that have slowed the machine down and you want a clean slate.
The reset process takes between 30 minutes and two hours depending on your internet connection and the age of your MacBook. You will need your Apple ID password, your Mac's login password, and a stable internet connection. If you are selling or giving away the machine, you should also have the new owner's Apple ID ready, or plan to leave the MacBook at the setup screen for them to configure.
Key Takeaways
- A complete reset erases your entire drive and reinstalls macOS, which is necessary before selling your MacBook or if you suspect serious malware infection.
- You can reset your MacBook using macOS Recovery, which you access by restarting and holding Command + R, without needing an external drive or installation media.
- Before you reset, back up any files you want to keep using Time Machine or by copying them to an external drive or cloud storage.
- After the reset completes, your MacBook will restart at the setup screen, and you can either configure it for yourself or leave it for a new owner to set up.
- If your MacBook has an Apple Silicon chip (M1, M2, M3, or newer), the reset process is slightly different because you may need to disable Find My Mac first.
Back up your files before you reset
Resetting your MacBook will delete every file on it. Before you start, decide what you want to keep and move it somewhere safe. The fastest way is to use Time Machine, Apple's built-in backup tool. Plug in an external hard drive or SSD, open System Settings, go to General, then Time Machine, and click "Set Up Time Machine". Select your external drive and let it run. A full backup usually takes one to four hours depending on how much data you have.
If you do not have an external drive, you can copy important files to cloud storage instead. Open Finder, select the files or folders you want to keep, and drag them to iCloud Drive, Google Drive, Dropbox, or another cloud service you use. This is slower than Time Machine if you have a lot of files, but it works if you only need to preserve documents, photos, or a few specific folders.
Do not skip this step. Once you start the reset, there is no way to recover files from the drive unless you pay a data recovery service, and even then recovery is not may provide.
Disable Find My Mac if you have an Apple Silicon MacBook
If your MacBook has an M1, M2, M3, M4, or newer chip (you can check by clicking the Apple menu, selecting "About This Mac", and looking at the Chip line), you need to disable Find My Mac before you reset. This is a security feature Apple added to prevent someone from erasing a stolen MacBook without permission.
Open System Settings, click your name at the top left, then select "iCloud". Scroll down and click "Find My Mac", then toggle it off. You will be asked to enter your Apple ID password. Once it is off, you can proceed with the reset.
If you do not disable Find My Mac first, the reset will complete but the MacBook will be locked to your Apple ID. The new owner will not be able to use it without your password, and you will have to unlock it remotely or they will have to contact Apple with proof of purchase.
Start the reset using macOS Recovery
Shut down your MacBook completely. Press the power button to turn it on, and when ready hold down Command + R. Keep holding both keys until you see the Apple logo or a spinning globe. This usually takes 10 to 20 seconds. Release the keys when you see the Recovery window appear.
You will see a window with four options. Click "Erase Mac" (or "Reinstall macOS" on older versions — the exact wording varies). You will be asked to select a disk to erase. The default selection is usually correct; it will be labeled "Macintosh HD" or similar. Click "Erase".
A dialog will appear asking you to confirm. Type your Apple ID email address and password. This is a security step to prevent someone else from erasing your MacBook remotely. After you enter your credentials, click "Erase" again. The process will begin.
Wait for the erase and reinstall to complete
The MacBook will now erase the drive and read a fresh copy of macOS from Apple's servers. This is why you need an internet connection. The progress bar will show you how far along the process is. Do not shut down the MacBook, unplug it, or close the lid during this time.
The entire process usually takes 30 minutes to two hours. Older MacBooks and slower internet connections take longer. If your MacBook is plugged into power, leave it plugged in. If it is on battery, make sure the battery is at least half full before you start.
Once the erase and reinstall finish, your MacBook will restart automatically. You will see the setup screen with the language and region selection. At this point, the reset is complete.
Configure your MacBook or prepare it for a new owner
After the restart, you have two choices. If you are keeping the MacBook, go through the setup process: select your language and region, connect to Wi-Fi, sign in with your Apple ID, and configure your preferences. Your MacBook will be completely fresh, with no old files, settings, or applications.
If you are selling or giving away the MacBook, do not sign in with your own Apple ID. Instead, shut down the MacBook at the setup screen and hand it to the new owner with the power off. When they turn it on, they will see the same setup screen and can configure it with their own Apple ID and preferences. This way they own the machine from the start and you have no access to it.
If you are giving the MacBook to someone you trust and want to help them set it up, you can go through the setup process together. Let them enter their own Apple ID so they own the account, not you.
What to do if the reset fails or gets stuck
If the MacBook gets stuck on the progress bar or the erase does not complete after three hours, force shut it down by holding the power button for 10 seconds until the screen goes black. Wait 30 seconds, then try again from the beginning: restart, hold Command + R, and select Erase Mac.
If you see an error message about not being able to erase the drive, the drive itself may be failing. Try restarting in Recovery mode again and selecting "Disk Utility" instead of "Erase Mac". In Disk Utility, select the drive on the left, click "Erase" at the top, and choose a format (APFS for newer Macs, Mac OS Extended for older ones). If Disk Utility cannot erase the drive either, the drive may need to be replaced by an Apple technician.
If you forget your Apple ID password and cannot complete the reset, you will need to reset your Apple ID password on another device using iforgot.apple.com, or contact Apple Support for help.
Frequently Asked Questions
Can I reset my MacBook without losing my files?
No, a complete reset erases everything. If you want to keep your files, back them up to an external drive or cloud storage first. You can also use Time Machine to create a full backup, reset the MacBook, and then restore from the backup after setup is complete.
What if I do not remember my Apple ID password?
Go to iforgot.apple.com on another device and reset your password. You will need access to the email address or phone number associated with your Apple ID. If you cannot access those either, contact Apple Support and be ready to answer security questions to verify your identity.
How do I know if my MacBook has an Apple Silicon chip?
Click the Apple menu, select "About This Mac", and look at the line that says "Chip". If it says M1, M2, M3, M4, or any number with an M, you have Apple Silicon. If it says Intel Core, you have an Intel processor. Apple Silicon Macs need Find My Mac disabled before reset; Intel Macs do not.
Can I reset my MacBook if it will not turn on?
If your MacBook will not turn on at all, try plugging it in and waiting 30 minutes, then pressing the power button. If it still will not start, the battery or power system may be damaged and you will need to take it to an Apple Store or authorized repair shop. A reset requires the MacBook to be able to start up and connect to the internet.
Do I need to reinstall my applications after a reset?
Yes. A reset removes all applications. After setup is complete, you can read them again from the App Store or from the developers' websites. If you purchased applications through the App Store, they will be tied to your Apple ID and you can read them again for free.