as a back up device.. i have googled that while i posted here, i have been reading that it can only back up if it has bonjour AND a backup utility installed on the windows computer? does the windows back up utility work in that situation or does it have to be a third party utility application?
Why don't get an external HDD and maybe a router, that supports USB drives connected to it, which you can access wirelessly via your network, and maybe some piece of software, that supports that?