Missing Drivers for HP Pavilion 15-cs2026na

[JamesDM1]

Since my HP Pavilion 15-cs2026na was upgraded to Windows 11, I have noticed that there are 2 drivers missing as per the screenshots of Device Manager below.

I have installed the most recent drivers from https://support.hp.com/us-en/drivers/selfservice/hp-pavilion-15-cs2000-laptop-pc/26122239/model/3153... and searched the Hardware ID's (which seem to be the same) online but haven't been able to fix the issue.

Can anyone advise me of the driver(s) to install to fix this?

Thanks. 

[Paul_Tikkanen]

Hi:

It should be one of these two drivers that install the first device...

Try this one first and restart the PC.

Intel Chipset Installation Utility

https://ftp.hp.com/pub/softpaq/sp101001-101500/sp101171.exe

If it is not that one, then it is this one...

Intel Dynamic Platform and Thermal Framework Driver

https://ftp.hp.com/pub/softpaq/sp95001-95500/sp95216.exe

The PCI device should be installed by the Intel Chipset Installation Utility.

[JamesDM1]

Thanks for your prompt and helpful advice, Paul!

I would have thought that I'd installed those from the product download page but it appears I missed those or I did but they didn't install properly for some reason!

I installed the first one (Intel Chipset Installation Utility) and the unknown devices in Device Manager disappeared, so do I need to also download and install the second one (Intel Dynamic Platform and Thermal Framework Driver) or leave it at just the first one?

[Paul_Tikkanen · Accepted solution]

You're very welcome.

I gave you the W11 chipset driver from the HP 850 G5 business notebook which has the same processor family as your notebook has, but the chipset driver was newer.

So, maybe you did install the driver from your notebook's support page, but the older driver didn't work for some reason.

You do not have to install the Intel Dynamic Platform and Thermal Framework Driver because the Chipset driver installed it.

Background...

If you had no drivers installed, there would have been two instances of the PCI Data Acquisition and Signal Processing Controller listed and two devices labeled as Unknown.

The chipset driver would have installed one set of those devices and the Intel Dynamic Platform and Thermal Framework Driver would have installed the second set of those devices.

Since you only had that one missing device, it was 50-50 as to which driver would have installed it.

So, the Intel Thermal Dynamic driver carried over during the W11 upgrade, and the two devices you were missing lost the chipset drivers during the upgrade.