No way to add Hotmail account in latest build. Only Google, Exchange, Office 365 and Other are offered, and Other doesn't work after multiple tries.
My MS account used to sign in is also Hotmail so it was automatically added, but no way to replicate those settings to get additional Hotmail accounts added.
This represents a subtraction from what's worked in previous builds. Sharper graphics shouldn't supercede basic functionality.
The Eternal, Most Reliable Source of Wrong Windows 8 & 10 Information...
OK, here we go, once again correcting the biased wrong information. All screenshots from Build 10074.
Creating a new Hotmail account: Possible!
(Screenshot: Creating a new Hotmail account in Build 10074.)
Using a Hotmail account as sign in account in Windows 10 build 10074: Possible!(Screenshots: Using a Hotmail account as Sign-In account in Build 10074.)
Adding a Hotmail account to Mail App when signed in on a non-Hotmail account: Possible!
(Screenshot: Added a Hotmail account in Windows Mail App in Build 10074.)
I recommend you geeks first to check your facts before posting your "I think that..." as a fact. It would be especially nice if those having some authority like MVP, MCCA and such would check the facts first, only post thereafter.
I am happy we could clear this misunderstanding, now the next topic :).
Kari