How do I change the name of my MacBook Pro?

The top of the "Finder bar" does not show anyone's name. It shows what you have selected in the Finder, such as a drive, partition, folder, or file. See this screenshot: https://www.flickr.com/photos/36589940@N04/13754851104/ OTHER ANSWER… has never tried this, or he would realize it is ridiculous. You cannot simply retype your user name. Create a new use account. Boot to single-user mode (hold command and the S key for 45 seconds at startup). [All typing commands that follow require strict adherence to the exact spelling. This includes noticing where there is a space between characters and where there is no space.] Type: /sbin/mount -uw / Press Return. {Nothing appears to happen, no problem.} Type: cd /users Press Return. Type: ls Press Return. {You see the user account folder names -- "Shared" plus any that were created. Write down any that were created.} Type: rm /var/db/.applesetupdone Press Return. Type: reboot Press Return. {Now stuff appears to happen.} Setup Assistant appears. Create a new account, but be sure to choose a different short name than that of the original [[short name is the name of the user account folder that you wrote down]]. Then open System Preferences > Users & Groups (or "Accounts" for older systems). Click the padlock icon, type your new password, select the old account, and then click the - sign to remove it. <0-0>