Follow these steps to unlink your Windows Account from your device
From version 2.6.x of the Indeqa Windows participant app (UWP) we'll use the Windows Authentication Manager (WAM) for the login flow. This is the current Microsoft standard which comes with great Single Sign On improvements. When you log in for the first time you'll be asked to add the account to Windows so you can use this account for all software which uses WAM authentication. This is a big improvement for Single Sign On experience.
Because credentials are stored in the Windows Authentication Manager it is not possible to log out of an application and expect that the next time you'll login you'll need to type in your credentials. So it's good to understand that logging in to Indeqa will default gives that Windows account access to al M365 resources in all WAM-connected apps.
If you want to unlink your Windows account you'll need to do the following:
1. In Windows go to "Access to work or school account" in settings.
2. Select "Remove connection" for the account you want to unlink with Windows (Authentication Manager)