Update Preventing Windows Going into Sleep Mode

dumfy · 08 Mar 2021

Windows 10 Pro
Version 1909
OS Build 18363.1411

Hi All
For the past couple of weeks, my PC has stopped going into Sleep Mode by itself. It works if I manually put it to sleep, but not if I rely on my Power Plan and am away from the PC for a while. I've changed nothing in the plan or settings that could make this happen.
I've back tracked on anything new that I have installed or done recently - there wasn't much.
What I have found is that the issue occurs when a particular Windows Update - namely KB4601380 - has been installed.
When I uninstalled this update, everything returned to normal and Sleep Mode worked as it should. Then Windows redid the same update automatically and the problem returned. I again uninstalled this update and paused Updates for a week. No more Sleep issues again. Of course, once Updates were unpaused, along came KB4601380, bringing with it the original problem.

So my questions are . .
1) Is this an important update and do I really need it?
2) If not important, how do I prevent Windows Update from continually downloading and installing the update. I've used Microsoft's wushowhide utility to no avail. but may be doing something wrong?
3) If it is important, what can I try to cure the issue it's giving me?
Appreciate the help and many thanks

Matthew Wai · 08 Mar 2021

Hide unwanted updates via Windows Update MiniTool:
Download Windows Update MiniTool - MajorGeeks

Select updates and click on the ±H button.

Try3 · 08 Mar 2021

There have been several reports of this in several TenForums threads. It does not only affect Version 1909.

Run this command. It will list those items that tell Windows to stay awake no matter what.

Code:

powercfg -requests

If the response identifies MoUsoCoreWorker then it means that this update-related component is inhibiting sleep. Like many of us, you could inhibit it. Try mngerhold's solution in post #9 of another thread

It worked for me.

Denis

sygnus21 · 08 Mar 2021

Try3 said:

There have been several reports of this in several TenForums threads. It does not only affect Version 1909.

Run this command. It will list those items that tell Windows to stay awake no matter what.

Code:

powercfg-requests

Thanks for posting this, BTW it's

Code:

powercfg -requests

You didn't have a space between powercfg and dash requests.

Anyway, my PC hasn't gone to sleep since the last 20H2 update (KB4601382). And yeah, I got "MoUsoCoreWorker.exe".

I'll now look into solving it as I've never had to disable mouse wake before (thomaseg1 post).

Thanks.

Try3 · 08 Mar 2021

sygnus21 said:

You didn't have a space between powercfg and dash requests.

Thanks. Corrected.

I used Martin's syntax [mngerhold's solution in post #9 of another thread] and have not had the problem since.

Denis

sygnus21 · 08 Mar 2021

Thanks. I just got a new .net update so I'll see how that fairs and go from there.

Thanks.

W10 Tweaker · 08 Mar 2021

Try3 said:

There have been several reports of this in several TenForums threads. It does not only affect Version 1909.

Run this command. It will list those items that tell Windows to stay awake no matter what.

Code:

powercfg -requests

Denis

Thanks for posting.

FYI, In early December, while I had my Windows update over-ride disabled, MS blessed my PC with a new 2004 OS. The sleep function has been completely intermittent and unreliable ever since except for one short period. The previous OS, 1809 worked wonderfully for sleep and auto-brightness adjustments between DC & AC power. All gone now. :-\

After running powercfg -requests just now, I noted 2 instances of a battery limiter App I use that may have been preventing sleep, fixed now. I'll shorten the delay time for sleep and see if sleep works again.

Update Preventing Windows Going into Sleep Mode-0308-powercfg-requests.jpg

Update;

It appears that sleep is working on my PC with 2004, it must have been fixed by MS.

I'm glad I didn't clean install 1909 as a fix.

Update Preventing Windows Going into Sleep Mode-0308b-powercfg-requests.jpg

sygnus21 · 08 Mar 2021

My PC is also now sleeping. Not sure if it was the .net update or me disabling "Allow this device to wake to wake computer" in Device Manager for my mouse. Will now enable that and see if the PC still sleeps.

dumfy · 09 Mar 2021

I've been using the Windows Update MiniTool as mentioned in Post #2 above and used it to hide KB4601380. So far, so good.

As an aside, when the Sleep issue I had was active, I ran powercfg -requests and there was nothing displayed or listed at all, so I had no indication of what the culprit may be. Not even MoUsoCoreWorker was listed.

Each system is no doubt different I guess. There is obviously something wrong with KB4601380 to be causing so many issues.

sygnus21 · 09 Mar 2021

sygnus21 said:

My PC is also now sleeping. Not sure if it was the .net update or me disabling "Allow this device to wake to wake computer" in Device Manager for my mouse. Will now enable that and see if the PC still sleeps.

Seems I need to un-tick "Allow this device to wake to wake computer" to allow my PC to sleep. Baffling is I've never ever had to do this in the past - that the box has always been ticked.

I will add though I did do a BIOS update, and prior to that there was a Windows update, so I'm not sure where the culprit lays