I was trying to change my password from System Preferences on my MacBook Pro. I followed the procedure by filling in the old password along with the new one. However, I am informed that the old password is incorrect! I tried several times but it didn't succeed. The old password is not working so the newer one is not being set.
MacOS – Old password not being accepted when attempting to change password
macospassworduser-account
Best Answer
You can reboot into recovery and run
resetpassword
from Terminal to reset your password.