Change your password through System Settings

Open System Settings (the gear icon in your dock or Applications folder), then click Users & Groups in the sidebar. You may need to click the lock icon at the bottom left and enter your current password to make changes. Select your user account from the list on the left, then click the Password tab. Click Change Password, type your current password once, then type your new password twice — the second time to confirm you typed it correctly.

Your new password takes effect immediately. You'll use it the next time you wake your MacBook from sleep or restart it. If you forget this password later, you can reset it using your Apple ID, so make sure you know that password too.

Key Takeaways

  • You change your MacBook password in System Settings under Users & Groups, in the Password tab of your account.
  • You must enter your current password before creating a new one, so have that ready.
  • Your new password starts working immediately, but you won't be asked to use it until your MacBook restarts or wakes from sleep.
  • If you forget your new password, you can reset it using your Apple ID from the login screen.
  • A strong password uses uppercase and lowercase letters, numbers, and symbols — avoid birthdays or common words.

What happens if you forget your current password

If you don't remember your current password and can't log in, restart your MacBook and hold Command + Q when you see the login screen. This opens the password reset options. Click the question mark next to the password field, and your MacBook will ask you security questions you set up when you created your account. Answer them correctly, and you can set a new password without needing the old one.

If you don't remember the answers to your security questions, you can reset your password using your Apple ID instead. Click the Apple ID option on the login screen, enter your Apple ID email and password, and follow the prompts. This route works even if you've never used your Apple ID to sign in before — as long as your Apple ID is linked to your MacBook account, you can use it to regain access.

Using your Apple ID as a backup if you get locked out

Your Apple ID acts as a safety net for your MacBook password. When you set up your account, your MacBook automatically links it to your Apple ID. If you forget your password and can't answer your security questions, you can use your Apple ID to reset it from the login screen.

To make sure this works when you need it, verify that your Apple ID password is something you actually remember — not something you've written down and lost. If you've forgotten your Apple ID password, you'll need to reset that first at iforgot.apple.com before you can use it to unlock your MacBook. This is why keeping your Apple ID password separate and secure matters: it becomes your last way back in.

Creating a password that's hard to guess but easy to remember

A strong MacBook password should be at least 8 characters long and mix uppercase letters, lowercase letters, numbers, and symbols. Avoid using your name, birthdate, or common words that appear in the dictionary. Instead, try a phrase you'll remember: take the first letter of each word in a sentence ("My dog ate 7 socks yesterday!" becomes Mda7sy!), or combine unrelated words with numbers between them (like "Purple42Elephant").

Write your new password nowhere until you've typed it into your MacBook and confirmed it works. Once you've logged out and back in successfully with the new password, you know it's set correctly. If you must write it down, keep that paper in a locked drawer or safe, not on a sticky note on your monitor.

Changing your password regularly and when to do it immediately

You don't need to change your password every month, but you should change it if you think someone else knows it, if you've used the same password on a website that was hacked, or if you shared it with someone who no longer needs access to your MacBook. You should also change it if you've typed it in front of someone and aren't sure they didn't see it.

If you suspect someone has accessed your account without permission, change your password right away, then check your login history. In System Settings, go to Users & Groups, select your account, and look at the login times listed. If you see logins when you weren't using your MacBook, someone else may have access — change your password, and consider enabling FileVault encryption to protect your files.

Enabling FileVault to protect your files when your password changes

Your MacBook password protects access to your account, but FileVault encryption protects your actual files if someone steals your MacBook or removes the hard drive. When you change your password, it's a good time to check whether FileVault is turned on. Open System Settings, click Security & Privacy, then select FileVault. If it says "FileVault is off," click Turn On FileVault.

Turning on FileVault takes time — it encrypts your entire drive in the background while you use your MacBook normally. You'll see a progress bar in Security & Privacy. Until it finishes, your MacBook will be slower than usual. Once it's done, your files are encrypted, and no one can read them without your password, even if they remove the drive from your MacBook.

Troubleshooting if your password won't change

If you click Change Password and nothing happens, make sure you've unlocked System Settings by clicking the lock icon and entering your current password. The lock must show as open (unlocked) before the change will go through. If the lock is already open and the button still doesn't work, try closing System Settings completely and opening it again.

If you see an error message saying your password is too simple, add more characters, numbers, or symbols. MacBook sometimes rejects passwords that are too short or use only letters. If you're still stuck, restart your MacBook and try again — sometimes a temporary glitch prevents the change from going through the first time.

Frequently Asked Questions

Do I need to change my password after I update macOS?

No. Updates to macOS don't affect your password or require you to change it. Your password stays the same through updates unless you choose to change it yourself.

What if I change my password but my MacBook still accepts the old one?

This usually means your MacBook is still logged in and hasn't restarted since you changed it. Restart your MacBook or log out, then try logging back in with the new password. The old password should stop working after you restart.

Can I change my password without knowing my current one?

No, not through System Settings. You'll need to use the security questions or Apple ID reset option from the login screen instead. If you can't answer your security questions and don't remember your Apple ID password, you'll need to take your MacBook to an Apple Store.

Will changing my password log me out of other apps?

No. Apps like Mail, Messages, and iCloud may ask you to enter your password again the next time they try to connect, but changing your MacBook password won't immediately log you out of anything. You'll be prompted to re-enter credentials only when those apps need to verify your identity.

What if I want to use the same password on multiple devices?

You can use the same password on your MacBook, iPhone, and iPad if you want, but it's safer to use different passwords on each device. If someone learns one password, they won't have access to all your devices. Your Apple ID password should always be different from your device passwords.