Instructions:

1.  (instructions on how to login)
2. Click on your current profile picture top-right of the page to open the account menu.
3. Click on your current picture in the account menu.
4. Click on the Browse button.
5. Select a new picture from your computer.
6. Click the Save button.
7. After the file has been uploaded to the server, the picture may take anywhere from 10 minutes to 24 hours for it to propagate across the system. During that time, other Microsoft 365 users will still see your previous picture.