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Patrick85
Level 1
7 6 0 3
Message 11 of 42
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Hi @ModyTheOne

 

I have exactly the same issue with this laptop.

 

https://h30434.www3.hp.com/t5/Notebook-Operating-System-and-Recovery/ACPI-sys-process-problem/m-p/67...

 

But I have this even when I perform clean install Windows 10 without updates.

In few hours i try solution with those services.

 

Did you find which one service causing this?

ModyTheOne
Author
Level 3
35 26 1 2
Message 12 of 42
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no i don't think these optional services are the problem i recently updated bios and it made my touchpad stop working so i might do a clean install too 

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Patrick85
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Message 13 of 42
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Sorry to hear that. :HalfEyes:

 

Next what I try to do is to disable devices in device manager.

Maybe one of devices/driver causing acpi.sys and interruptions.

 

In forums I read that in some cases intel/realtek network adapters, sound/sata controllers, or power save settings causing this.

 

This issue is very irritating, because this is laptop for games, and system eats ~30% CPU :HalfEyes:

ModyTheOne
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35 26 1 2
Message 14 of 42
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you problem still occurs after restarting ? i restart and the system is noraml 

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Patrick85
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Message 15 of 42
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Same here. When restart or put to sleep mode and wake, system is normal.

But when power off and on in few minutes or later acpi.sys/interruptions return.

 

I tried this solution, and it helps for 2 days until I install some software, and problem returns:

 

"I had similar issue with xxx E6540, 4 cores, one core permanently at 100%, process: System, thread: acpi.sys. Thanks to @ThePosey I tried to turn off Device Manager -> Network Adapters -> Intel(R) Ethernet Connection I217-LM. Process usage immediately dropped to 1%. When turned on -> one thread started to work at 100% again. Then I noticed that when I switched Power Options -> Power Plans, CPU usage characteristic changed (one core 100% -> 80%, other core 0% -> 50%, depended on the selected profile). Then I researched the problem further and found out a solution: Network Connections -> Intel(R) Ethernet Connection I217-LM -> right click Properties -> Configure -> Power Management -> section Wake on LAN -> disable Wake on Magic Packet AND Wake on Pattern Match. Process usage immediately dropped to 1%, problem solved."

 

Try it.

ModyTheOne
Author
Level 3
35 26 1 2
Message 16 of 42
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hey man 

did you try Restoring the laptop to the factory settings?

 

esc at boot then f11 

so far no system proccess and the laptop feels cleaner downside i have to download windows updates again 

but all personal data on my non windows drive is intact 

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Patrick85
Level 1
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Message 17 of 42
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No I dont't try that yet. I tried to turn off devices in device manager but with no success.

Are you download Windows updates?

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Odunayo1
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2 2 0 0
Message 18 of 42
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Working with you has been so great and it has been a genuine pleasure interacting with you. I hope both you and your product works great and remain healthy for a long time
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lewy01
Level 2
15 13 0 6
Message 19 of 42
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Have you guys solved this problem finally ? I'm fighting with this (acpi.sys + 0x42f50 process) for a while now and pretty much there's no solution yet. For my omen there's only one way to deal with it for some time - few restarts, but this solution it's not an option. Thanks! 

matck06
Level 2
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Message 20 of 42
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hi, I have the same problem for a long time no way to solve it, I sent the pc to the service after sale, it formatted the pc but without success, I'm lost what to do ???

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