Click the icon at the far right of the menu bar and select System Settings.

Open User Accounts.

You need administrator privileges to add user accounts. Click Unlock in the top right corner and type your password.

In the list of accounts on the left, click the + button to add a new user account.

If you want the new user to have administrative access to the computer, select Administrator for the account type. Administrators can do things like add and delete users, install software and drivers, and change the date and time.

输入新用户的全名。根据全名将会自动填充用户名。默认可能就可以了，但如果愿意您可以更改。

Click Create.

The account is initially disabled until you choose what to do about the user's password. Under Login Options click Account disabled next to Password. Select Set a password now from the Action drop-down list, and have the user type their password in the New password and Confirm password fields. See 添加密码.

您也可单击新密码字段旁边的按钮，以选择随机产生的安全密码。这些密码别人难以猜测，但是它们也很难记住，所以一定要小心。

单击更改。