Change password for email account in Outlook

Hello Peter Mueller,

I understand it can be inconvenient to deal with authorization errors when you simply need to update your password. 

Google recently updated how their accounts connect to third-party applications like Outlook. Because of this, your computer is likely holding onto an expired authentication token, which is causing that "Access blocked" error and preventing the system from accepting your new password. 

To fix this, please try the following steps: 

Step 1: Remove old credentials. 

• Close Outlook completely.
• Open your Windows Start menu, search for Credential Manager, and click on Windows Credentials.
• Scroll down to Generic Credentials and remove any entries that contain Google, Gmail, or MicrosoftOffice16_Data:OAUTH2. 

Step 2: Reconnect the account. 

• Open Outlook again. It should now prompt you that your Gmail password is required and open a secure Google pop-up window.
• Sign in with your new Gmail password and approve the connection. 

Step 3: Use an App Password (if necessary). 

If you clear the credentials and Google still throws an Authorization Error, you may need to use an App Password instead.

• Go to your Google Account security settings in a web browser, ensure 2-Step Verification is turned ON, and search for App Passwords.
• Generate a one-time, 16-letter password specifically for "Outlook."
• Go back to Outlook, and when it asks for your password, paste that 16-letter code instead of your normal Gmail password. 

I hope these steps help clear out the old token and get your Gmail account successfully syncing with Outlook again. Please feel free to reply to this thread if you need further assistance! 

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

For a Gmail account in Outlook, the password cannot be changed directly inside Outlook. It must first be changed with Google, then Outlook will prompt for and store the new password.

Follow these steps:

1. Change the password in Google (Gmail):
   • Go to the Google Account password page and change the account password there.
   • If using 2-step verification, ensure an app password is created and use that in Outlook instead of the main Google password.
2. Update the password in Outlook for Windows:
   • After the password is changed with Google, open Outlook.
   • Outlook should prompt for the updated password when it tries to connect. Enter the new Gmail password (or app password).
   • If Outlook keeps failing and shows the Google “Access blocked: Authorization Error” page, remove the Gmail account from Outlook and add it again using the normal Gmail/Google sign-in flow so that Google can re-authorize Outlook.

If classic Outlook keeps asking for a password or fails authorization, it is usually because the password was changed with the provider (Google) but not updated in Outlook, or because the provider is blocking the sign-in. In that case, completing the password change with Google and then letting Outlook re-prompt for credentials is required; there is no separate “password-only” field in Outlook that bypasses Google’s sign-in and authorization.

References:

• Change or update your email password in Outlook for Windows
• Troubleshoot Outlook email setup