The game is afoot; there are new updates - in two parts. First you get a Hardware Update; then after it installs run the update utility again and you get three more: Surface Management Engine update Surface System Aggregator Firmware update, and Surface UEFI update. At the moment I have no idea what they do. I turned Connected Standby back off, and thought I'd see SLEEP options and see more Standby States in Powercfg - but no. The full description from MS is here: Microsoft Surface Book update history | Surface firmware updates There's a lot of stuff about battery and charging, but there's only one line referring to SLEEP: Surface Book Base Firmware driver update (v126.96.36.199) improves battery life during sleep. Underwhelming. So I have Connected Standby ON and have reselected a bunch of SLEEP options in the still reduced set of Power Options (I thought we'd get the others back too) and we'll see what happens!