Hi,
After installation i always check the Windows Device Manager but i never lacked a driver.
This drive has never been missing (i have reinstalled windows several times).
So far everything is working perfectly.

Hi,

Thank you for reaching out to us. We will assist you regarding this. 

Before you notice "*DellProf" as unknown device in device manager, was there any application or software installed?

DellProf is the Dell System Analyzer Control Device, it might have already being installed hence you are seeing "*DellProf" in the device manager.

There is nothing that isn't working incorrectly because of this device manager notification. If you are planing to reinstall the operating system, you don't have to worry about it. We suggest you to back up the data and reinstall the operating system, it should be fine.

If you need any further assistance, please private message your system service tag or the express service code for us to get the system details.

Welcome to the Dell Community  @DellFanHungary 

Does it have a Hardware ID???

https://m.wikihow.com/Find-Hardware-ID

Best regards,

U2

@DellFanHungary 

I find the same as @DELL-Cares 

https://www.dell.com/community/Laptops-General-Read-Only/unknown-devices-in-device-manager-in-xps-13-9350/m-p/4696929

Best regards,

U2

Hi,
Hardware ID: *DellProf
Name: Unknown device
Device instance path: ROOT\SYSTEM\0001

Hi, could we check this article https://dell.to/2s7vn41

Sorry to write again on this topic, but I am still concerned about this problem.
I read the posts the link pointed to, but I didn't get smarter with it.

I would like to ask: Where can I find the Dell System Analyzer Control Device (* DellProf) driver on my hard drive?

Thanks if you answer.

Hi, could you share the system service tag through the private note for further assistance, we are happy to help?

Hi, I read through this topic, but couldn't find a solution.
"unknown devices in device manager in xps 13 9350"

The last time I installed windows, I chose to completely reinstall by cleaning the disk.
It may have been too much.

I sent the service tag.

Thanks.

@DellFanHungary 

Any update???

Regards,

U2