Powercfg is a very powerful command for managing and tracking how
your
computer uses energy. You can use the command “powercfg /hibernate
on” and
“powercfg /hibernate off” to manage hibernation, and you can
also use the
command “powercfg /a” to view the power-saving states
currently available on
your PC.
Another useful command is “powercfg /devicequery s1_supported” which
displays a list of devices on your computer that support connected
standby.
When enabled, these devices can be used to bring your computer
out of standby
– even remotely. You can enable this by selecting the
device in Device Manager,
opening its properties, going to the Power
Management tab and then checking
the “Allow this device to wake the
computer” box.
“Powercfg /lastwake” will show you what device last woke your PC from
a sleep
state. You can use this command to troubleshoot your PC if it seems to wake
from sleep at random.
