Overview

If you recently changed your password and Outlook continues to prompt you for credentials, Outlook may be using outdated cached credentials stored in Windows. Removing the old credentials allows Outlook to authenticate using your current password. [learn.microsoft.com], [redmondmag.com]

Step 1: Close Outlook

  1. Save any open work.
  2. Close Microsoft Outlook.
  3. Ensure Outlook is fully closed before continuing.

Tip: If prompted, also close Microsoft Teams and other Microsoft 365 applications.

Step 2: Open Credential Manager

  1. Click the Start button.
  2. Type Credential Manager in the search bar.
  3. Select Credential Manager from the results.
  4. Click Windows Credentials. [redmondmag.com]

Step 3: Remove Outlook and Microsoft 365 Credentials

  1. Review the list of stored credentials.
  2. Locate credentials related to:
    • Outlook
    • Microsoft Office
    • Microsoft 365
    • OneAuth
    • ADAL
    • Azure AD
    • login.microsoftonline.com
    • Your LSUA email address
  3. Expand each entry and select Remove. [learn.microsoft.com]

Note: Removing credentials does not delete your email account. It only removes the saved sign-in information.

Step 4: Restart Your Computer

  1. Save any remaining work.
  2. Restart your computer.

This ensures Windows removes any remaining cached authentication information. [learn.microsoft.com]

Step 5: Sign In to Outlook

  1. Open Outlook.
  2. When prompted, enter your LSUA email address.
  3. Enter your current password.
  4. Complete any multi-factor authentication (MFA) prompts if required.

Outlook should now reconnect using your updated credentials. [learn.microsoft.com]