Note that these instructions are written for Hotmail, but this process is also there if you want to set up Outlook Live or MSN accounts. This tutorial is how the iPhone lets you see, but is only one step away on the iPad.
Step 1: Go to Settings> Add Account and Password> Account.
Step 2: Select Outlook.com. As mentioned above, the same process you do with a Hotmail email account or MSN Live.
Step 3: An entry page will appear on your screen. First, enter your email address and press Next.
Step 4: Enter your Hotmail email password and click Log in.
Step 5: Null Yes Confirm that you want iOS to have permission to use your data.
Step 6: Select Data for Access Hotmail on your iPhone. You can choose to synchronize emails, contacts, calendars, and reminders for Hotmail. By default, on everything. Once you have selected, tap Save.