Before beginning these steps, ensure that:
You have setup a Microsoft account in Windows 8.
You have your Active Directory (AD) username and password. Your username is usually the first part of your UCSD email address (before the @ symbol). If you forgot your password, you can reset it.
You have an Exchange account in the UCSD Campus Exchange Organization.
Click the Mail tile in the Start screen to open the Mail program
Press Windows key + I on the keyboard to open Mail settings
Enter your e-mail address in the Email address field
Enter your AD passsword in the Password field
Select Show more details
Enter <yourdomain> in the Domain field
Enter your AD username in the Username field
Click Connect to add the account