Win8 and Win8.1 are same language versions from microsoft license center
i tried a new Win8 computer without any apps/applications, there were 3 options to do in 8.1 upgrade
and i tried a used Win8 computer with office 2013, antivirus, Visual stuido......, but there was only a option (keep nothing) in 8.1 upgrade.
any requirements for an upgrade to show the option (keep apps/applications and files)?
Thanks.