Diagnostic Policy Service - high CPU

HP laptop problem
In the last few days, this laptop started having poor performance, with Task manager showing Diagnostic Policy Service taking up to 30% or more of CPU.

HP Spectre x360 - 13-4197dx (ENERGY STAR)


In the last few days it started having poor performance, with Task manager showing Diagnostic Policy Service taking up to 30% or more of CPU.



Did upgrade of BIOS, no improvement.
Downloaded all current windows upgrades – no fix.
I created a new (admin) user, same problem.
I ran all of the diagnostics in the HP Support Assistant, all passed – no effect.
I ran "sfc /scannow." and "Dism /Online /Cleanup-Image /RestoreHealth" – no effect.

There is an online thread on this in the HP forums, which does not seem to show any fix.
https://h30434.www3.hp.com/t5/Notebo...c/td-p/6209980

The HP support is abysmal – it took several minutes for him to echo back “so this is your computer system?”, and then the only suggestion was a factory reset.

Hello, i finally found the solution for the problem! The dps service constantly creates log files in folder "C:\Windows\system32\sru" every second. This leads to high disk usage and the folder becomes very large, multiple Gigabytes of data. Force stopping the service and then deleting this folder fixes the problem. The folder is not created anymore when you start the service. You must stop the service before deleting the folder.

I made a batch file which stoppes the service and prompts the user to delete the folder. Then the service is startet again. Just create a text file and insert following code. Then save as .bat file. You need to start the bat as admin though.

Download bat or make own bat with code block below
https://nofile.io/f/w2cdg4n8TSZ/fixDPSservice.bat

Code:

@echo off
echo ... Set DPS service start type to manual ...
echo.
sc config DPS start= demand

echo.
echo ... Find PID of DPS service ...

for /f "tokens=2 delims=[:]" %%f in ('sc queryex dps ^|find /i "PID"') do set PID=%%f

echo.
echo ... Kill DPS service
echo.

taskkill /f /pid %PID%


echo.
echo ... Delete sru Folder ...
echo.

rd /s "%windir%\system32\sru"

echo.
echo ... Set DPS service start type to auto ...
echo.
sc config DPS start= auto

echo.
echo ... Start DPS service ...

sc start DPS
echo.

pause