Here is my Powercfg /a response:
C:\Windows\System32>powercfg /aThe following sleep states are available on this system: Standby (S0 Low Power Idle) Network Connected Fast StartupThe following sleep states are not available on this system:Standby (S1) The system firmware does not support this standby state. This standby state is disabled when S0 low power idle is supported.Standby (S2) The system firmware does not support this standby state. This standby state is disabled when S0 low power idle is supported.Standby (S3) The system firmware does not support this standby state. This standby state is disabled when S0 low power idle is supported.Hibernate The hiberfile type does not support hibernation.Hybrid Sleep Standby (S3) is not available. Hibernation is not available. The hypervisor does not support this standby state.I have tried all manners that I know of to enable Hibernate: using GPedit, Regedit, Powercfg /h on, and none of these options will turn on Hibernate. Apparently after 4 hours of Sleep (Modern Standby) my computer should go into Hibernation automatically but it doesn't, after 19 hours in sleep I lost 93% battery and could not turn on the computer because the battery is dead.