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You may have encountered a Pop-Up Window asking for Username and Password when trying to setup Gmail in Microsoft Outlook versions Outlook 2003, Outlook 2007, Outlook 2010, Outlook 2013, Outlook 2016 and more.

In this Tutorial, we will fix this issue permanently. Step by step instructions to fix Outlook keeps on asking for username and password and can not connect to Gmail.

There can be one of two reasons for which Outlook keeps asking for Username and Password.

  1. “Allow Less Secure Apps” Option is not enabled in Google Account Settings.
  2. “2-Step Verification” is enabled in Google Account Settings.

 

1. Let’s talk about first reason which is “Allow Less Secure Apps” Option.

Outlook and other third party mail clients seem to be considered as Less Secure Apps by Google for accessing Gmail. That is why until unless Google User doesn’t “Allow Less Secure Apps” option in Google Account Settings, can’t access Gmail in Outlook or in any other Third Party App.

Let’s see step by step how to fix this or How to Allow Less Secure Apps in Google Account Settings:

  1. Login to Google Account.
  2. Open My Account Settings.
    Click on Profile Pic or User Icon(Top right corner of Google) and Click on My Account.
  3. On Google My Account Page, Under Sign-in & security click on Signing in to Google.
  4. On Signing in to Google page scroll down to the bottom and enable the option “Allow Less Secure Apps“.

Tip“Allow Less Secure Apps” option not found because “2-step verification” option is enabled on Google Account. If want to enable “Allow Less Secure Apps” Simply Disable “2-step verification” from the same page and then refresh the page and enable “Allow Less Secure Apps”.
If you want to keep “2-step verification” option enabled then follow below mentioned solution.

So, If you don’t have “2-step verification” enabled then after enabling “Allow Less Secure Apps” option Outlook will not prompt for Username and Password Again and Again.

 

2. Now let’s talk about if “2-step verification” option is enabled in Google Account.

TIPIf “2-step verification” option is enabled in Google Account then normal default login password will not work in setting up Gmail in Outlook. App Password is required for Gmail and the corresponding device on which setup will be done.

Step by step instructions fixing Login Pop-up in Outlook if “2-step verification” option is enabled in Google Account.

  1. Login to Google Account.
  2. Open My Account Settings.
    Click on Profile Pic or User Icon(Top right corner of Google) and Click on My Account.
  3. On Google My Account Page, Under Sign-in & security click on Signing in to Google.
  4. On Signing in to Google page under “Password & sign-in method” find “2-step verification” option. This must be enabled.
  5. Just below “2-step verification” option find “App Passwords” and click on it. Verify by entering the password.
  6. On “App Passwords” page, Select the App and Device by click one by one and selecting from the drop-down menu.
    For App select “Mail” and For Device select the device on which setup will be done.
    For E.g. if set up is on Android device on any third party Mail App then select “Android”, select iPhone for setting up on iPhone, select Windows PC for PC.
  7. After selecting right App and Device option, click on GENERATE button.
  8. After clicking on generate pop-up window will appear containing “App Password”.
  9. Copy this password and use it instead of normal login or default login password for setting up Gmail in Outlook.

Important: I highly recommend to use “2-step verification” if you use any third party app to access Gmail on any device. Because “2-step verification” option is meant to provide the extra layer of security to Gmail.