If you need to change your Google account login email address, it's easy to do. First, log into your Google account. On the top right of your screen, you will see an icon with a person. When you click on it, you will be directed to a settings page. On this page, you will see an "Account" section with a link titled "Personal info." When you click on this link, you will be taken to a page that includes your current Google account login email address. To the right of this address will be an "edit" button. Click the button, and then you'll be able to input your new account login email address. Enter the new address, and then click on "save." You will have successfully changed your Google account login email address.