Outlook will not lte me log into gmail accounts

Repair New Outlook first, and if the sign-in loop remains, reset its local state before adding Gmail again.

Repair or reset New Outlook

1. Close Outlook (new).
2. Open Start → Settings → Apps → Installed apps.
3. Find Outlook (new), select the three dots → Advanced options.
4. Select Repair.
   • Repair attempts to fix the application without removing its data.
5. Reopen Outlook and try the Gmail sign-in.
6. If it still returns to Manage account or remains stuck, return to the same Advanced options page and select Reset. Windows recommends Reset when Repair does not resolve an app problem.^1^

Reset removes Outlook’s local app data and configured accounts, so those accounts and preferences must be added again. Mail stored in Gmail remains on Google’s servers. This reset has resolved a closely matching New Outlook problem where the Google sign-in page became stuck.^2^

Add Gmail again

After Outlook restarts:

1. During initial setup, enter the Gmail address and select Continue.
2. If Outlook opens without prompting, go to View → View settings → Accounts → Your accounts → Add account.
3. Select the Gmail address and complete Google’s browser sign-in.
4. On the Google permissions page, select Allow.
5. Return to Outlook and wait for Done to appear.^3^

Gmail is a supported account type in New Outlook for Windows, so manual IMAP configuration or an app password should not normally be required for this flow.^4^

If Reset does not break the loop

Check whether the Gmail address is also being used as an alias for a Microsoft account. This condition has caused New Outlook to treat a Gmail address as a Microsoft identity and repeatedly return to the wrong sign-in flow.

If the Gmail address appears among the aliases in the Microsoft account:

1. Set an existing Outlook.com address as the primary Microsoft-account alias.
2. Remove the Gmail address as a Microsoft-account alias.
3. Open New Outlook and authenticate the app with the Outlook.com address.
4. Add Gmail separately under Settings → Accounts → Your accounts, then optionally make Gmail the primary Outlook account.

This alias-specific procedure applies only when the Gmail address is actually listed as a Microsoft-account alias; it resolved an otherwise persistent New Outlook Gmail sign-in loop after repair, reset, and credential clearing had failed.^5^

Do not use Classic Outlook credential-manager or manual IMAP fixes unless the application is actually Classic Outlook; those procedures target a different client.

References

1. Windows 11
2. Outlook forcing google sign-in - Microsoft Q&A
3. Add a Gmail account to Outlook for Windows
4. Supported accounts in new Outlook for Windows
5. Outlook new won't open, makes me attempt to sign in through Google which fails every time. - Microsoft Q&A