My Hotmail has been switched to Outlook.com automatically and I do not like the Outlook at all. I just need to get my Hotmail back and tried to do the steps mentioned. I can't find the sentence on how to switch back to the old Hotmail?
I am sorry to say you cannot. Since Outlook.com has left "preview" the migration from Hotmail is permanent.
Q: If I move my Hotmail account to an Outlook.com account, can I change my mind and go back?
A: At this point, no. (When Outlook.com was still in "preview," Microsoft did allow this.)
Also (from Microsoft Support):
Thanks for being a loyal Hotmail customer. As part of the transition from Hotmail to Outlook.com—the next generation of free email from Microsoft—there is no longer an option to switch back.