There could be several reasons why you are unable to change your password on your MacBook Air. Here are some possible explanations and solutions:
1. Incorrect current password: It is important to enter the correct current password in order to change it. Make sure you are typing the password correctly, taking into account both uppercase and lowercase letters, as passwords are case-sensitive. If you are unsure about your current password, you can try resetting it using the “Forgot your password?” option.
2. FileVault is enabled: If you have FileVault enabled on your MacBook Air, it encrypts the contents of your startup disk and requires your password to unlock it. In this case, you will need to disable FileVault before changing your password. To do this, go to the Apple menu, select “System Preferences,” then click on “Security & Privacy.” Choose the “FileVault” tab and click on the lock icon to make changes. Enter your current password, then click on “Turn Off FileVault.” Once FileVault is disabled, you should be able to change your password.
3. Password complexity requirements: macOS has certain password complexity requirements, such as a minimum length or the inclusion of numbers and special characters. If your new password does not meet these requirements, the system may not allow you to change it. Make sure your new password meets the necessary criteria.
4. Keychain Access issues: The Keychain Access is a macOS app that securely stores passwords and other sensitive information. Sometimes, Keychain Access may cause issues when changing passwords. To resolve this, you can try resetting the Keychain. Open the “Keychain Access” app from the Utilities folder in the Applications folder. Go to the “Keychain Access” menu and select “Preferences.” Click on the “Reset My Default Keychain” button and enter your current password. This will reset the Keychain and may resolve any password change issues.
5. System issues or software conflicts: Occasionally, system issues or conflicts with other software installed on your MacBook Air can prevent password changes. Performing a restart or updating your macOS to the latest version can help resolve such issues. Additionally, if you recently installed any third-party software that may interfere with system functionality, try uninstalling or disabling it temporarily to see if it resolves the problem.
If none of these solutions work, it may be necessary to seek further assistance from Apple Support or visit an Apple Store for in-person help. They can diagnose any underlying issues and provide more specific guidance based on your situation.