If you’re repeatedly getting pop‑ups asking you to change your password while you’re using Outlook, you may need to remove your saved passwords to resolve the issue.

If you’ve previously selected the Remember my credentials check box while logging on and have subsequently changed your password, Windows won’t overwrite your originally saved password with the new one.

To fix this issue, erase your saved passwords from Windows by following these steps:

  1. For Windows 7, click the Start button and in your Windows search box, type Credential Manager, and then press the Enter key (or click the search result).
  2. Proceed to Step 6.
  3. For Windows 8, with your cursor anywhere on the Start screen (or in the Search charm on the Charms bar), type Credential Manager, and then press the Enter key (or click the search result).
  4. Proceed to Step 6.
  5. For Windows 10, in your Windows search box, type Credential Manager, and then press the Enter key (or click the search result).
  6. To remove saved passwords in Windows 7, refer to Step 7. To remove saved passwords in Windows 8 and Windows 10, refer to Step 9.
  7. To remove saved passwords in Windows 7, under Windows Vault, expand the items you want to remove saved passwords from, and click Remove from vault.
  8. Repeat Step 7 until you’ve removed all saved credentials from Credential Manager.
    NOTE: You will be required to reenter your new username and password the next time you log on.
  9. To remove saved passwords in Windows 8 and Windows 10, under Windows Credentials, expand the items you want to remove saved passwords from, and click Remove (Windows 10 shown, Windows 8 similar).
  10. Repeat Step 9 until you’ve removed all saved credentials from Credential Manager.
    NOTE: You will be required to reenter your new username and password the next time you log on.

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