Source: https://hotmailcustomerservice4u.wordpress.com/2015/05/08/how-to-resolve-a-sign-up-problem-in-hotmail/

Users should check that they are typing the correct Email address with password for logging in. Although, many times users don’t suspect but they accidentally end up typing the wrong email address or end up making a typographical error while enter the password. So, using the correct case for typing and accurate spelling of the selected username and password is the first step to resolve the login issue for the account. If there is a password loss issue then MSN provides the simple protocol of Password reset with which all users can access their account without needing to wait for hours for the official tem to respond. They can easily identity their account and further confirm their identity via the means of security questions or the synced Mobile number or Email address and get their account back.How to resolve a Sign up problem in Hotmail

Another option of Account recovery in hotmail also works as the password reset option works. Users can use the option for account recovery by following the simple instructions that are given with the official page for protocol. More help on Sign up issues can also be sought from the Hotmail tech support team or via the forum threads listed with the official Microsoft Forum page. The Forum offers free of cost discussion, advice services for the users who have posted issues while also enabling users to explore the forum for free for the specific topic that they are looking to get help for. Users can also access service for free of cost through the telephone option and further user third party service if they want to get fast but paid service options. Hotmail customer service toll free phone support and paid house calls are covered by third parties all across the world. Users can even sign up for long term subscription.