When you can't add gmail to windows 10 mail app. It means, there is something with the user account or password credentials. here are the complete guide to fix such problems. you can apply it on your devices. 1. first of all, you need to check the username and password for your credentials. 2. Go to the Mail account settings and edit the username and password for your account. 3. Update the username and password for your email as well. 4. Remove the account and then re-add it. So these are the steps to fix the gmail account problems on the windows 10 mail app.
