1: Make sure that you have already activated your license at https://sites.google.com/berkeley.edu/microsoft-365-activation/home
2. Launch the MS365 application you are using, such as Word, Excel etc and open a blank document.
3. ONLY if you have logged into your application before, sign out. You can find the Sign Out option on the Word menu (or Excel etc). If Sign Out option does not appear, go to the next step.
3. You may have a bar at the top of the screen that says your license is not activated. If so, click Activate.
4. In the window that says "Activate Microsoft 365", click "Already bought office? Sign in".
4: In the MicroSoft Sign In window, log in using your berkeley email account
5: The CalNet signin screen appears. Sign in with your usual credentials.