How do I reset my password on an old Apple Mac

Windows Password forgot is a very common problem, but also happens on Mac computer too.

"got out my old Apple Macbook & I can't remember the password.
I've tried everything- command+r & command+s didn't work for me.
I'm willing to delete everything off the computer I I have too."

Here will share some tips on Mac password recovery, you can choose one way to try to.

1.Resetting Lost Mac Passwords with Apple ID

When you need to recover your mac password, this is the best approach for Mac users running new versions of OS X  because it’s extremely fast and simple. The only requirements are that you must have tied an Apple ID to a user account, and you must have internet access so that the Mac can contact Apple to initiate the reset procedure.

From the Mac login or boot screen, enter any wrong password three times to summon the “Password Hint” box and a message saying “If you forgot your password you can reset it using your Apple ID”… click on that (>) arrow icon to start the Apple ID based reset
Enter the Apple ID credentials, this is the same information used to log into the App Store, iTunes, and iCloud, then click “Reset Password”
Confirm the new password and let the Mac boot as usual

It is very easy, right, but if it doesn't work, you can try the below one.

2. Reset Mac Password  with installer CD/DVD or Recovery Mode Partition

Resetting a forgotten Mac password is pretty easy if you have an installer disk, the recovery steps depend on the version of OS X the Mac is running.

For OS X Mavericks (10.9), Mountain Lion (10.8), and Lion (10.7) with Recovery Mode:
Boot into the Mac OS X boot loader menu by holding down the OPTION key at system start
Choose the Recovery drive to boot into recovery mode and wait until the “Utilities” screen appears
Pull down the “Utilities” menu and choose “Terminal”
At the command line, type “resetpassword” without the quotes
Confirm the new account password, then reboot the Mac as usual

For Mac OS X Snow Leopard (10.6), Leopard (10.5), and before with install DVD/CD:
Insert the bootable DVD into the Mac and restart or start the computer
Boot the disk by holding down the “C” key at system start
Select your language preferences and then under the “Utilities” menu select “Password Reset” (it may say “Reset Password” instead, depends on the version of Mac OS X)
Select the hard disk that the forgotten password is on, then select the username of the forgotten password, you’ll then be asked to select a new password
Reboot as usual from the hard drive, using your newly reset password as the login!

Hope this two tips can help your recover your forgotten password on Mac computer.