I've come here in search of a solution after experiencing this problem overnight myself.

The problem is two-fold:

1. It's indeed Windows Update forcing a restart overnight. In my case, I have...

Try3

OMG it started again... Plugged in overnight, the laptop turned on at 12:18am, then went into a connected standby state. Found it sitting with just the screen off, idling warm in the morning....

If I'm using it on the Dock, and the next time I'm using it I don't have the Dock, what then? The workaround is not viable for a laptop.

It works okay with or without the Dock. It just requires a hard power off once, if I plug it in or unplug it from the Dock when it's in hibernate state. I.e. If I'm using the laptop, plugged into the...

Following up on this: It seemed to have worked for a couple weeks. It's back to failing at the Bios screen again, if I switch it on/off the docking station... Any further troubleshooting? I'm hoping...

I have. It only has Turn off display after, as yours does. I've expanded and checked all the submenus.

Doesn't exist in my case. See my power options dialogue, above.

Based on another troubleshooting process (which concluded that Modern Standby was rubbish and I should only have Hibernate as an option), I have Sleep disabled.

When streaming a video, the laptop...

Returning to this.

While we solved the modern standby issues by killing Modern Standby -- something else happened in the process of this debugging which is bothering me. The Windows 10 SleepStudy...

Argh!
(1) This laptop was manufactured after the release of that BIOS.
(2) Lenovo Vantage (app) and Lenovo's Drivers and Updates website both scanned my computer to check for updates. Both ALWAYS...

So Modern Standby corresponds with the Screen Off time limit setting I guess?

Twenty minutes doesn't make sense to me either though. It was plugged in, so it should be following the "When Plugged...

I had some help from the BSOD pros. It was an embarrassing oversight on my part: BIOS update seems to have done the trick (time will tell). The computer seems to have shipped with a much older bios...

Ah, I say "high power consumption" because Windows calls it up as such -- basically it's saying that there is an abnormal amount of processing going on in that time.

I've set the History to...

I have the Lenovo Thunderbolt 3 Gen 2 dock which I use with my Lenovo C940.

When I put my laptop to Hibernate and try to restart it, the laptop stalls at the Lenovo BIOS Splash screen. I check...

Sorry for the delay. Getting caught up now.

HEre are the ModernStandby transitions for the time period of interest:


Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date:...

Apologies, I do understand. When I say "Sleep" in quotations, I recognize that it's modern standby and not traditional Sleep mode. I say "Sleep" because that reflects the text in the settings...

Thanks Denis, I'll give that a try and report back regarding connected standby. Sadly, I find it can take several days to confirm. Possibly, if it is WU or some similar scheduled thing, it can take...

Hmm, I'll try to outline my thought process here, referring to the settings I showed in the original posts, for the Plugged In state:

I let the screen turn off after 15 minutes idle. I don't care...

Cool, I'll be patient :)

I'd just note the odd situation re: Connected/Disconnected Standby. powercfg -a suggests Connected standby is activated. Referring to the options in the Tutorial you sent:...

Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date: 16/07/2020 02:11:12
Event ID: 42
Task Category: (64)
Level: Information
Keywords: (1024),(4)...

Here we are, and indeed: No S3 Sleep support. However, the "Network Connected" status is shocking... I mean, you can see it in my previous posts with the screengrabs: The setting is set to Always...

OK so deactivate "Sleep" as an option, and always use hibernate? - - for lid Close, or Power Button press.

If that works, great, and I'll never see this problem recur. Why did none of the timings...

I've split the image up into 2, and uploaded them with really good resolution. At least in Edge, I'm able to click on these images and zoom in, after I post them.

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Sleep and Modern Standby Issue, common to Windows 10 laptops by Lenovo / HP / Dell / Microsoft; also directly relating to a massive battery drain.

See the diagram below for a diagrammatic...

Thanks, that's an interesting read. I suppose I should reword my last post though -- why has this come about all of a sudden? 2-3 days ago, I didn't have this problem so much. A week ago, it...