Do you and your friends share the same Mac computer when playing pokies and you want a separate user name when you log in to play games? Then here are the four easy steps to change your username . Before you proceed to change your username on your account note you should have the right administrator password. Also before you begin, back up any important data that you may need from this user account because if something goes wrong, you could accidentally lock the account or create other problems that may leave you without access, so better have a back up
First step is to Log into a different administrator account
You cannot rename an account that you are currently using. So, your first step is logging out and then logging into your administrator account, the one that provides the authorization to change things like usernames, etc. You can log out at any time by selecting the Apple logo in the upper left corner of your Mac, and choosing Log Out (name you want to change).
If the account that you are using has administrator privileges, then you’ll need to find a workaround. The easiest way is to log out and then create an alternative administrator account for these steps. You can delete this temporary account when you are finished with the other steps.
Second step is to rename the home folder
For a complete name change, you will need to start with your home folder. Your home folders are located in the Users folder. You should be able to find the Users folder by going to the Finder menu, selecting Go, choosing Go to Folder, and then typing in Users.
Here, look for the folder that has the “short name” of the username you want to change. Like, if the full name is “John Ramb” then the short name may just be “John” or it may be identical to the full name. Write this name down, because you’ll need it later, and then change the short name folder to the name that you want. Don’t bother shortening it. You’ll have to put in the administrator password again at this point.
Third step is to Log into Users & Groups to find your user profile
Now go to System Preferences, which you can find in the menu bar. Here, select Users & Groups and click the padlock button so that you can start making changes — you will probably have to enter the administrator password yet again at this stage.
Look for the username that you want to change, and right click on it (or control click, double-tap, whatever opens the shortcut menu on your computer). From the shortcut menu, choose Advanced Options. This should take you to a new window.
Finally fourth steps is to rename the proper fields and restart
In Advanced Options, look for two fields called Account name and Home directory. In the Account name field, you will want to change the name to the exact same name that you gave the home folder in step three. Make sure the names match exactly and that there are no spaces, otherwise this won’t work.
In the Home directory field, do the exact same thing. Input the precise new username that you want for your Mac.
Now select the Ok button in Advanced options. Log out of this administrator account, and log into the account whose name you have changed and the new name should now be visible. Check to make sure that all your files and apps are visible, and that everything appears to be working properly. Perform a few basic actions and open some documents. If everything looks good, then your new username is ready to be used!
Remember this method works with the latest MacOS updates, including High Sierra, El Capitan, and Yosemite. Some of the icons or names may be a little different, but the basic steps are the same. If you don’t have one of the latest updates, then your operating system is outdated then you update it before you try changing usernames.