You need to install the new Microsoft 365 Online Desktop applicant. To do this:
1. Go to portal.microsoftonline.com.
2. Log in with your user name (email address) and new password.
3. On the right tool bar select “Downloads”.
4. Select “setup” and follow the on screen directions.
Here is STEP 2 for preparing your computer for Microsoft 365.
You need to change your password to the new Microsoft 365 requirements. These requirements are:
The password must be 8 characters and include (3 of 4) lower case, upper case, numbers or special characters.
You can change your password by opening the Microsoft Online Services client, selecting the “Options” tab and clicking “Change Password”.
You can find the Microsoft Online Services client on the bottom right toolbar are in the program group “Microsoft Online Services”.