Switch quickly between users
If your Mac has multiple users, an administrator can turn on fast user switching to let more than one user stay logged in at the same time. To switch from one user to another without logging out, users choose their name from the menu bar, and then enter a password or use Touch ID.
Turn on fast user switching
Choose Apple menu > System Preferences, click Users & Groups, then click Login Options.
Open the Login Options pane of Users & Groups preferences for me
Click the lock icon
to unlock it, then enter an administrator name and password.Select “Show fast user switching menu as,” then choose how the fast user switching menu looks in the menu bar.
Switch by using a password
Click the fast user switching menu in the menu bar, then choose your user name.
The fast user switching menu looks like either a user icon or the name of the current user, depending on the setting in Users & Groups preferences.
Enter your password, then click the arrow.
Switch by using Touch ID
Click the fast user switching menu in the menu bar, then choose your name.
The fast user switching menu looks like either a user icon or the name of the current user, depending on the setting in Users & Groups preferences.
Place your finger on Touch ID.
To display the login window instead of switching directly to another user, click the fast user switching menu in the menu bar, then choose Login Window.