Hi there, @1stclasse3,

I appreciate your time checking this with the Community. I can share some information on how to unsave previous user login in QuickBooks Desktop.

It's possible that you have turned on the preference to automatically recall the last login. To turn this off, follow the steps below:

1. In QuickBooks, go to Edit menu.
2. Click Preferences from the drop-down.
3. Choose General from the preference list.
4. Go to Company Preferences.
5. In the Manage Login Settings section, unclick the Keep user logged in for option.
6. Click OK.

The client should now be prompt to enter their username and password again. Make sure they already have their user ID set up in QuickBooks. Here's how to do that:

1. Go to the Company menu.
2. Choose Users.
3. Click Set Up Users and Roles.
4. To set up a new user, click New.
5. Click Edit if you want to edit a user access.
6. Click OK.

You might find this articles helpful:

• Stay logged in to QuickBooks company file (sign in without entering your password)
• QuickBooks Desktop Users and Restrictions

That should do it, @1stclasse3. Let me know if you have any more questions about QuickBooks. I'm here to answer them for you. Have a great day!