How do I create an Amazon account for my granddaughter. It keeps making it so difficult.

Log it in!

Amazon.com Help: Get Support Registering Your Kindle E ...

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Make sure your device is connected to a Wi-Fi network. Make sure you're using your current Amazon account sign-in information and password. If you' ...

Can't Register Device or Software Application - Amazon.ca Help

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Your Amazon login information is current by going to Your Account. Your email client is not filtering incoming mail from Amazon to a junk or spam folder if you ...

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To register your Kindle Fire:

1. From Home, swipe down from the top of the screen, and then tap More.
2. Tap My Account.
3. Tap Register. If you already have an Amazon account: Enter your Amazon account information. If you do not have an Amazon account: Tap Create Account to set up a new account.

Amazon.co.uk Help: Register Your Kindle Fire

or go to this link and have a read up.
How do register my kindle fire Google Search

From Home, tap the Menu Menu icon
icon, and then tap Settings.
Tap Registration.
Choose the Amazon account you want to use on your Kindle:
If you already have an Amazon account: Tap this option. Enter your Amazon account information. Tap Register. Your name will appear as the Registered User when registration is complete.
If you do not have an Amazon account: Tap this option and follow the onscreen instructions to set up a new Amazon account

If you are registering a new device. You have to give it your log in info for amazon account meaning user name and password you use when logging into amazon.com

For that I'd go to amazon.com click help( just under the search bar)
click manage devices, Click contact us on left side of screen. fill in info about problem. You have a choice of reply methods and I usually go for call back. They are fairly quick and will talk you through the fix.

There is a lot of information available on the Amazon website, but in short you should try the following:

To register your Kindle Fire:

1. From Home, swipe down from the top of the screen, and then tap More.
2. Tap My Account.
3. Tap Register.
   If you already have an Amazon account: Enter your Amazon account information. If you do not have an Amazon account: Tap Create Account to set up a new account.

For more info check out:
http://www.amazon.com/gp/help/customer/display.html?nodeId=201729910

Hope that helps!

You can re-register your Kindle through the device itself. Go to the "Settings" menu, select "Register," and then enter your Amazon account email address and password to connect your device to your account. If you do not have an Amazon account, you are prompted to create one.
Can You Re Register After Deregistering on Kindle The Classroom Synonym

In your set up menu you will see register. I always have problems with that so I use computer. log onto amazon.com next to search bar is Your Account. place mouse on that to bring up list, click your account. There is a lot of info on that page but I usually go to kindle help home, click. Fill in info and choose email or phone for them to answer back.

In your Amazon account, ( If you don't have one, create one) simply login and click on the "Manage your Kindle" tab on the right of the screen, and then select the "my devices" option, where you can register or deregister your Kindle.
If your Kindle is second-hand, you'll need the serial number of your Kindle to register it in your name.