I recently updated to Windows 10 on my desktop pc.

Now, as soon as I type www.live.com, my email opens without me having to enter any User Name or Password.

This is not what I want: the desktop pc is for use by anyone in the household - but I don't want my children, or house guests, being able to read my emails.

How do I set up my email so that I have to enter a User Name and a Password, before my emails (and Calendar, Address Book, Contacts) can be accessed?