The password of your macOS user account is also known as your login password. It's the password that you use to log in to your Mac and make certain changes, such as installing software.

Turn off your computer and hold the power button + Command R. Wait for the loading bar to appear on the screen while your Mac boots to Recovery. Next, choose Disk Utility Continue Utilities Terminal. Type “resetpassword” (in one word) and click Return. Go to the main hard drive and choose your user account. To reset your password using another admin account, log in to your Mac using the credentials associated with that account. Next, click the Apple icon and select System Preferences. Oct 18, 2016 Restart your Mac computer, and when it asks the password, enter the password you have just set in step 4, and you will be able to log in. Method 3: Use Terminal To Reset Your OS X Password Before you get on to try this method, let me tell you a few things. The password hint box should show a message that says, “If you forgot your password, you can reset it using your Apple ID.” Click the greater than icon to initiate the password reset using Apple ID. Enter your Apple ID credentials. These are the same details you use in logging into iCloud, iTunes, and App Store. Click the Reset Password.

Change your password

If you know your password and can use it to log in to your account, you can change your password in Users & Groups preferences:

1. Choose System Preferences from the Apple menu, then click Users & Groups.
2. Select your user name from the list of users.
3. Click the Change Password button, then follow the onscreen instructions.

Reset your password

If you don't remember your password, or it isn't working, you might be able to reset it using one of the methods described below. But first try these simpler solutions:

• Make sure that you're typing the correct uppercase or lowercase characters. If your keyboard has Caps Lock turned on, the password field shows a Caps Lock symbol .
• If the password field shows a question mark, click it to display a password hint that might help you to remember.
• Try to log in without a password. If that works, you can then add a password by following the steps to change your password.
• Try to log in with the Apple ID password that you use for iCloud. If you just changed that password and the new password isn't working, try the old password first. If that works, you should be able to use the new password from then on.

Reset using your Apple ID

Reset Mac Pro Without Password

In some macOS versions, you can use your Apple ID to reset your login password. At the login screen, keep entering a password until you see a message saying that you can reset your password using Apple ID. If you don't see the message after three attempts, your account isn't set up to allow resetting with Apple ID.

1. Click next to the Apple ID message, then follow the onscreen instructions to enter your Apple ID and create a new password. You'll be asked to restart when done.
2. Log in with your new password.
3. Determine whether to create a new login keychain.

Reset using another admin account

If you know the name and password of an admin account on your Mac, you can use that account to reset the password.

1. Log in with the name and password of the other admin account.
2. Choose System Preferences from the Apple menu, then click Users & Groups.
3. Click , then enter the admin name and password again.
4. Select your user name from the list of users.
5. Click the Reset Password button, then follow the onscreen instructions to create a new password:
   
6. Choose Log Out from the Apple menu.
7. Log in to your account using your new password.
8. Determine whether to create a new login keychain.

Reset using the Reset Password assistant (FileVault must be on)

If FileVault is turned on, you might be able to reset your password using the Reset Password assistant:

1. Wait up to a minute at the login screen, until you see a message saying that you can use the power button on your Mac to shut down and start up again in Recovery OS. If you don't see this message, FileVault isn't on.
2. Press and hold the power button until your Mac turns off.
3. Press the power button again to turn on your Mac.
4. When the Reset Password window appears, follow the onscreen instructions to create a new password.
   If you need to connect to Wi-Fi, move your pointer to the top of the screen and use the Wi-Fi menu to connect. To exit without resetting your password, choose Apple menu > Restart.
   
5. When done, click Restart.
6. If you were able to reset your password with the Reset Password assistant, log in to your account using your new password.
7. Determine whether to create a new login keychain.

Reset using your Recovery Key (FileVault must be on)

If FileVault is turned on and you have a FileVault Recovery Key, you can use that key to reset your password.

1. At the login screen, keep entering a password until you see a message saying that you can reset your password using your Recovery Key. If you don't see the message after three attempts, FileVault isn't on.
   
2. Click next to the message. The password field changes to a Recovery Key field.
3. Enter your Recovery Key. Use uppercase characters, and include the hyphens.
4. Follow the onscreen instructions to create a new password, then click Reset Password when done.
5. Determine whether to create a new login keychain.

If you can't log in with your new password after restarting your Mac, take these additional steps:

1. Restart again, then immediately hold down Command-R or one of the other macOS Recovery key combinations until you see the Apple logo or a spinning globe.
2. When you see the macOS Utilities window, choose Utilities > Terminal from the menu bar.
3. In the Terminal window, type resetpassword, then press Return to open the Reset Password assistant pictured above.
4. Select ”My password doesn't work when logging in,” then click Next and follow the onscreen instructions for your user account.

Create a new login keychain, if necessary

After resetting your password and logging back in to your account, you might see an alert that the system was unable to unlock your login keychain. This is expected, because the passwords for your user account and login keychain no longer match. Just click the Create New Keychain button in the alert.

If you didn't see an alert about your login keychain, or you see other messages asking for your old password, reset your keychain manually:

1. Open Keychain Access, which is in the Utilities folder of your Applications folder.
2. Choose Preferences from the Keychain Access menu, then click the Reset My Default Keychain button in the preferences window. After you enter your new password, Keychain Access creates an empty login keychain with no password. Click OK to confirm.
   If you don't see a Reset My Default keychain button, close the preferences window and select the “login” keychain from the left side of the Keychain Access window. Press the Delete key, then click Delete References.
   
3. Choose Log Out from the Apple menu to return to the login screen.
4. Log in to your account using your new password. Your account password and login keychain password now match again.

Reset Mac Without Password

If you still can't log in

If you still can't log in with your password, contact Apple Support for help.

No matter which method you use to reset administrator password on mac, it won't automatically update the password protecting the account's login keychain. Since the keychain is still protected with the old administrator password, there would be no way to get back into it unless you could update keychain password or create new keychain.

Probably you are just prompted to do that at startup after Mac admin password reset, such as on Yosemite, or constantly asked to enter the keychain password after Mac login. Regardless of which happens, resetting keychain password would help you access Keychain again.

Reset User Password On Mac

Method 1: Reset Keychain login password in Keychain Access

After you log into Mac with new administrator password, follow the steps below.

1. Open Keychain Access from Finder> Applications Utilities, and choose Keychain AccessPreferences from top menu.

2. In newer versions of Mac OS X, such as on Yosemite, you will see a button Reset My Default Keychain under the General pane.

3. Click it and enter the new login password in Password field to create new keychain.

Note: If you have no such button, choose EditKeychain List (Command + Option + L), select the login keychain, and click the minus button to delete it.

4. Quit Keychain Access and restart Mac. A new login keychain will recollecting and storing the passwords for Wi-Fi networks, email accounts, Web sites, and other logins as they occur.

Method 2: Reset Keychain password with command line in single user mode

If you cannot work with Keychain Access because of something like Messages Agent constantly asking for the forgotten login keychain password, you can use command line to reset Keychain password in single user mode.

1. Restart Mac and hold on Command + S to enter single user mode.

2. After you are prompted to enter a command-line after numerous lines of status messages, type this command to mount the root Mac OS X drive as writable.

mount -uw /

3. Delete that account's login keychain.

rm /Users/shortname/Library/Keychains/login.keychain

Note: If you are not sure the shortname, please confirm it with command 'ls /Users' at first.

4. Reboot Mac by command 'reboot'.

After Mac starts, you should have created a new keychain on Mac.

Update keychain password if you still remember the old one:

1. Click Update Keychain Password and enter the old password at startup, or continue login and enter old password when you are asked.

2. Open Keychain Access and right click on login, and choose the option Change Password for Keychain 'Login' from pop-up menu.

3. Enter the old password in 'Current Password' field and new password in 'New Password' box. Verify it and click OK to successfully change keychain password.

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