Microsoft doesn’t support being logged into multiple accounts (such as a work and school account) at the same time in a single browser session. If you need to access more than one Microsoft account at once, try one of these quick and easy methods:
Method 1: Incognito/Private Browsing Mode
If you’re only trying to sign in to your Northwood University account and are running into issues, visit logout.northwood.edu to sign out of all Microsoft Office accounts first.
Method 2: Use Two Different Browsers
Method 3: Use Browser Profiles