There is a support page created by Microsoft which explains how to change the contact information for the account attached to Outlook. However, to change the information, use the instructions below or visit the website:
- Start Outlook application.
- From the Tools menu, go to Accounts.
- On the Mail tab, select the e-mail account you want to change the information for, and then click Properties.
- Input the necessary data, save the changes and that's it.