I just purchased a Surface Book 16gb i7 and noticed that frequently it does not go to sleep when the power button is pushed, or when the laptop is closed. Repeatedly, this causes major issues when I put the laptop away, as it drains battery over the next few hours, and my full charge is gone when I reopen.
I know there was an update for this (although I purchased in July of 2017), which I manually installed from the Microsoft site. Windows Update does not give me Surface updates because windows is managed through my place of employment, and they only push 'approved' updates.
I believe this is 'Surface Management Engine' which my current driver shows 7/26/2016 (188.8.131.523), which I believe is after the last update, so the fix should be included. But, in fact, it is not.
Is there something else I need to do to fix this? When off battery, the settings are to go to sleep in 5 minutes, and that instruction is clearly being ignored by the system.