[SOLVED] BSOD if I try to activate Core Isolation - cause is hswultpep.sys driver ?

[Samson_DE]

I'm using Windows 11.
Now I try to activate the CORE ISOLATION.
If I restart after activation, I get a BSOD (Blue Screen of Death) und it shows me, that there is a problem with driver hswultpep.sys.
My PC has an INTEL-Board with Intel Core i3-8100 processor.
The properties of the hswultpep.sys driver are:

• Filedescription: Intel Engine Power Plug-in driver
• Fileversion: 6.2.9200.16384
• Productname: Intel(R) Core(TM) 4xxxU and 4xxxxYProcessor Line Power Engin Plug-in
• Productversion: 6.2.9200.16384
• Copyright: Intel Corporation
• Changingdate: 08.02.2013

It seems me that this driver is very old.
How can I solve this problem?
I tried to find corresponding information in the WEB, but unfortunately did not find anything.

Kindly regards

Samson

 

[Samson_DE]

Yes, I really did the installation with the 22H2 - Sorry.
However, the same problem also occurs when I perform the repair installation with version 22H1.
So I have no choice but to try a clean installation with version 22H2 as you suggested.
So at least I can quickly see if it's possibly due to the hardware.
Thank you very much for your great support!!! 👍👍👍

 

[Colif]

You could try a repair install of win 11 22H2 using the ISO for 22H2

I would ask on here before clean installing, they might have a better idea

 

[Samson_DE]

The error was found and the source of it was also identified.
I had a lot of time yesterday and worked through the device manager device by device until I found the device that uses the driver HSWULTPEP.SYS.
There I was offered to reset to an older driver.
Here the driver INTELPEP.SYS was used.
The driver HSWULTPEP.SYS is from 31.1.2013, the INTELPEP.SYS from 20.6.2022, thus clearly more current.
This error also occurred with the latest Windows version 22H2.
As cause I could locate the program "DRIVER UPDATER", which wanted to exchange the current, against the ancient driver.
When I first used DA, I made the mistake of replacing all drivers marked as old.
In the future I will check every driver for this problem and only replace the one that really needs to be changed.
I would like to take this opportunity to thank everyone who gave up their time to help me.
The core isolation is now running smoothly!!!

With kind regards