Before Hotmail became Outlook.com, Microsoft's new email service, when you logged into your account, the Windows Live home page appeared. From the home page, you could just log in to your inbox. With the emergence of Outlook.com, access to the inbox was simplified and you no longer need to perform a trick to access it directly.
Check Your Email on Hotmail
Go to Outlook.com and log in with your credentials (email and password) from your Hotmail account. Your inbox will appear immediately.
As you can see, currently access to the inbox is direct. Before you had to log in to Hotmail, access your inbox, and click Options (in the upper right). Select More Options and under Customize Hotmail, click Windows Live Home Settings. Check the box next to Show Inbox when you sign in, and then click Save.