Always make sure that you are on the correct website when filling in personal details. https://xbox.com is the official site for Xbox and Xbox Live support
Creating a new account
Creating an Xbox account is quite a simple and easy process, if you already have a Microsoft account, you can use the same account to manage all your Xbox settings. If you don't have a Microsoft account You can use your usual email address to create a Microsoft account, even if it’s a non-Microsoft email (such as Yahoo, Gmail, etc.).

When creating your new account you will need to fill in the following information:

Password
First & Last Name
Location and Date of Birth

You will then receive an email with a code which is needed to be entered in order for your account to be completed. Once you have done this, you can use your Xbox account to sign into any Xbox websites or games that use Xbox Live.

If you already have a Microsoft account
It's even easier if you already have a Microsoft account. Head over to https://xbox.com and sign in with your Microsoft account.

Follow the on-screen instructions to complete the setup of your Xbox account, and then return to your device or the game you are trying to access to sign in. And that's it! Welcome to the world of Xbox Live, and enjoy playing Minecraft Multiplayer! Make sure to check out our network as well by finding us in the featured servers list!

The sign-in button can be found at the top-right of the webpage.