If it is an http hotmail account, you can't. Windows Mail does not support
http accounts, like Outlook Express did before.
If you happen to have an old legacy hotmail account (msn maybe?) using pop3,
then, you can get WM to support it through trickery. Use the domain name
Warmmail.com when you set it up. After you are done setting it up, change
the domain name to hotmail. There is a bug in the wizard preventing setting
up a pop3 with the domain name of hotmail.com. But after setup with another
name, and changed, it works.
-Frank