Hi Brigitte Hoyle,
Thank you for posting in the Microsoft Community Forums.
Open your browser and navigate to account.microsoft.com.
Sign in with your Microsoft Business account credentials.
If you are not already signed in to your Microsoft Business account on Windows, you will need to do the following:
Find the Accounts option in Windows Settings.
Select "Sign in with a work or school account" or another option.
Enter your Microsoft Business account credentials to sign in.
Once you have logged on to Windows with your Microsoft Business account, you can change the settings associated with Microsoft Business.
Best regards
Neuvi Jiang