Chain 'remembers' who was logged in on the Windows user of that computer.
I have my own Windows login
When you login to Chain, this is remembered by your Windows account (on the PC you logged in to).
You should find that next time you login to Windows on the same PC, Chain will automatically open and login for you.
You therefore shouldn't need to log out of Chain 😊
I share a Windows login with other staff
If you share a Windows account with other staff at the practice it is best to logout of Chain at the end of each session. To do this click the menu (the icon with your initials in a circle) and click logout.
Next time you login to the Windows account you will be prompted to login to Chain. If it shows someone else's initials in the toolbar, you should log them out as shown above 😊