To switch user on Windows 10 computer, there are three different methods for your choice.
Video guide on how to switch user in Windows 10:
Way 1: Switch user via the user icon.
Tap the bottom-left Start button on desktop, click the user icon on the top-left corner in the Start Menu, and then select another user (e.g. Guest) on the pop-up menu.
Way 2: Switch user via the Shut Down Windows dialog.
Open the Shut Down Windows dialog by Alt+F4, click the down arrow, choose Switch user in the list and hit OK.
Way 3: Switch user via the Ctrl+Alt+Del options.
Press Ctrl+Alt+Del on the keyboard, and then select Switch user in the options.
No matter which method you choose from the above to switch user on your PC, you can successfully go to the login screen to select the user you want to switch to, as shown in the following screen shot.