If you’re like many Yahoo users, you may have unlinked your account from your email address in the past, but you may not have unlinked your account from your username. Here’s how to do it:

  1. Log in to Yahoo.com.
  2. Click on the Account link in the top left corner of the screen.
  3. Under “Your Account Info,” click on “Linked Accounts.”
  4. On the next page, under “Username,” click on “Unlink.”
  5. Enter your old username and password and click on Unlink again. ..