Windows 10 OS not going into sleep mode

It's amazing in the last 3-4 years I have had intermittent problems with various computers unable to enter sleep mode for a variety of reasons. It's astonishing to think that MS is unable to solve this problem. Up to yesterday when it had been working fine for a stretch I noticed again yesterday mysteriously my sleep settings had been changed and tonight I find my computer awake, though I hadn't turned even turned it back on since yesterday. And when I run powercfg I find good ol MoUsoCoreWorker.exe to be once again the culprit.

Windows 10 in 2021 still isn't able to get the basics right. As a user you have the right to expect to set simple sleep settings and for the OS to be able to obey this simple requirement. But no, I find this so frustrating it seems they are unable to manage W10 project, maybe the whole W10 has just got too complex for them.
I'm seeing so many people with this problem. Just Google and you will find plenty of IT proficient users who have spent hours trying to sort this out and either not resolving it, or having the problem reappear somewhere down the line.

I don't want suggested solutions I can find my own thanks. As for the MS community forums, well they are often a joke in the quality of the responses and I try and avoid them like the plague.

I guess I just wanted to vent my frustration.

Hope you feel better now that you vented.

Please mark this thread as solved .

steve108 said:

Hope you feel better now that you vented.

Please mark this thread as solved .

Steady on. I will when people have had a chance to read it and maybe feel like responding. I guess I just want to feel I'm not alone in my frustration.

Is that okay with you??

Sleep mode worked correctly for me until Windows 8.1, on a old desktop PC with ASUS P7P55D-E Deluxe motherboard.
Starting with Windows 10, it didn't wake up half of the time from sleep mode.

So I had to disable sleep mode and hibernation for good in that system, because I tried a dozen different settings to not solve anything.

In the end I went for the nuclear option and used solution 3 on this page which seems to have worked so far. It looks like I can still manually update though I haven't put it to the test.

I do feel your pain that something so basic can be so hard to get working properly.