Microsoft Outlook

• 1). Open Microsoft Outlook. Click "Tools" and select "Account Settings."
  
  
• 2). Click "E-mail." Select the email account for which you wish to change the display name. Click the "Change" button.
  
  
• 3). Clear the "Your Name" text box. Type in your desired display name. Click "Next" and select "Finish."
  
  

Yahoo! Mail

• 1). Open Yahoo! Mail. Click "Options" at the top-right corner of the window. Click "More Options" or "Mail Options." The wording depends on which version of Yahoo! Mail you have.
  
  
• 2). Select "Accounts" in the left pane. Select "Yahoo! Mail" under "Accounts." Erase the "Your 'From' name" field. Enter the name you wish to have displayed on your outgoing emails.
  
  
• 3). Click "Save."
  
  

Hotmail

• 1). Visit Live.com. Sign into your Windows Live profile.
  
  
• 2). Click "Profile" at the top of your screen. Click "Details" on the right side of your screen.
  
  
• 3). Click the "Edit" button next to your name.
  
  
• 4). Type in your desired first and last name. You must enter a last name. Click "Save."