The Content of this years E3 Show has not been made public yet, but its no secret that Microsoft project Xbox Scorpio becomes this Year the main Focus of Microsofts Fan Event.
Microsoft's E3 2017 press briefing live stream kicks off @ June 11, starting at 2 PM PT / 5 PM ET. You can watch the show over Xbox Live and/or external live stream (I´m adding the streaming link to this posting, if its available).
Live streams are available on:
1. Twitch.Tv
2. Xbox.com
3. YouTube