For the past few days, my HP laptop stays at roughly the same battery level for several hours after I close it, then suddenly begins losing power around 4 a.m. Windows reports that the Default Lock Screen is using most of the battery. Wake timers are disabled, and although I suspected an overnight Windows update, the drain happened again without any update being installed. Are there system logs or power reports I can check to find out what is waking the laptop or consuming power?
1 Answer
Check whether the laptop is actually entering sleep or switching to hibernation. Try changing the sleep and hibernation settings temporarily and compare the results. If it is connected to a wired network, disconnecting that can also help rule out network activity waking the system.
It is not connected to Ethernet, and I have not intentionally changed the sleep or hibernation settings. If Windows changed them, what settings or logs should I check?