Why were all messages in my inbox deleted without warning nor my permission?

I am in the same position as the user who posted this.  I've used and paid for Hotmail for years and never had an issue until now.  And I'm still waiting to hear answers to the following:

Question # 1:   Why was my inbox cleared out without warning or my permission?

Question # 2:   Can those mails be put back back into my inbox or my Do Not Delete folder?

Question # 3.   How can I prevent this from happening in the future?

Microsoft---PLEASE help me!