I'm using Windows 8 with the Metro Messaging app. I can't work out how to block messenger spam, there doesn't seem to be an option either within the app or within the online live account settings. I'm getting at least 4 a day from random people who are not on my contact list.
Any help appreciated! I can only find guides online for the desktop app version of messaging.
EDIT: Just to clarify, I'm using Windows 8 on a Laptop - I think its Windows 8 Home or Professional version.