How do I activate Microsoft Office?

If Microsoft Office is asking for a product key, or for activation, please follow these steps:

If it's a new computer or a new installation, activate Office by signing in with your work or school account.

If you already have it installed and your license expired in Office 2013:

1. Open an Office product, like Microsoft Word
2. Go to File > Account
   
3. Click on Change Product Key
   
4. Click on Sign in with an active account instead
   
5. Enter in your UC Davis email
   
6. Select that you have a Work or school account
   
7. Enter in your UC Davis credentials
   
8. Sign in