Windows 10: Windows 10 hangs after long time idling - cpu issue?

Hi my pc:
108500K stock 4800mhz
2x16 GB DDR4 GSKILL 3200mhz XMP
Seasonic Tx-850 Ultra Titanium
Gigabyte Rtx 3090 Gaming OC
Aorus Z490 Pro Gaming
1 TB SSD


I have updated Windows 10 to H20,the newest version. I installed windows 10 month ago with new pc. So far so good,games not crashing all stable.
My pc is on 24 hours. Today was idle 5-6hours in desktop. After few hours when i go to use pc, i run Google chrome and then all suddenly freezed. I mean i was able to touch/move mouse, but all...

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Windows 10 hangs after long time idling.

Its stable on heavy load. Also my ram is on XMP ( 3200mhz ) and never crash in games and not freezing.


Happens once in Windows 10 after long time on idle, when i run chrome , all started slowly hanging. And i make ctrl alt delete and then all hangs ,caps lock stops working.

I dont overclocking anything.Please read more carefully.


ps:
I dont have any bsods + pc is stable on heavy load. And yeah i have dogdy hardware when pc passing all stress tests for 24 hours? LOL

 

Windows 10 hangs after long time idling.

Hi my pc:
108500K stock 4800mhz
2x16 GB DDR4 GSKILL 3000mhz XMP
Seasonic Tx-850 Ultra Titanium
Gigabyte Rtx 3090 Gaming OC
Aorus Z490 Pro Gaming
1 TB SSD


I have updated Windows 10 to H20,the newest version. I installed windows 10 month ago with new pc. So far so good,games not crashing all stable.

My pc is on 24 hours. Today was idle 5-6hours in desktop. After few hours when i go to use pc, i run Google chrome and then all suddenly freezed. I mean i was able to touch/move mouse, but all stops resonding. Chrome,search bar,start button stops responding. Then i make ctrl alt delete and black screen with blue circle. So i make hard reset.
It happened first time that hang of system.
Is there somewhere my pc not stable or its a windows thing? Like i said pc was idle 5-6 hours when i go to use pc, i turned on google chrome and then all suddenly hangs. I checked EVENT VIEWER: Nothing,0 entries about any errors.
Thx.


ah ps
NZXT cam was on background and epic launcher + steam.


PS:Running currently Karhu Ram test no errors.


It was hardware issue?

 

How fix 4-times-higher CPU usage at idle?

Yes, I have noticed negative effects on my PC's performance:

-Browsing is slower when I open multiple tabs rapidly. I do this a lot (I research multiple links in online articles).

-My PC gets much hotter, and stays hot--so much hotter that I have to turn it off.

After the Windows 10 Anniversary Update, the 39% CPU usage screen shot of my Process Manager was when I was doing nothing--no browsing, word processing, etc. Before I took the screen shots, I closed all application programs. My machine was leveled out, as you better describe it (the screen shots were taken 5 minutes after my PC first leveled out). My PC is 39% CPU usage when leveled out; never lower.

Before the Windows 10 Anniversary Update, my PC was 10% CPU usage when it leveled out. And it stayed there.

1 other PC we have with the Windows 10 Anniversary Update (same model as my PC) *HAS* the 39%-CPU-usage-at-idle problem.

2 other PCs we have with the Windows 10 Anniversary Update (different brands) DO *NOT* HAVE the 39%-CPU-usage-at-idle problem. They have only 10% CPU usage at idle.

[NOTE I've no software to my PC after the Anniversary Update. My programs, etc. the are same as before.]

Any ideas on what to do to fix my high CPU usage?:
-use Process Explorer? (how do I use it in this case?)
-reinstall hardware drivers? (which ones?)
-suspend certain services? (which ones?)

I've seen comments suggesting each of the above ideas. I need step-by-step instructions (ideally screen shots) for Process Explorer. For drivers & services, which do I try?

Any ideas on the above possible fixes OR better fixes for my high-CPU-at-idle problem? I'd really appreciate them