4540 proBook s upgraded to windows 8. now I have 3 devices without drivers that are known.

Model: HP Probook 4540 s

Model number: B2D26UT #ABA

Windows 8 Pro

After you have installed Windows 8 I have two devices that say "Base system device" Code 28, PCI Slot 2 (bus 2 PCI, device 0, function 0 and 3) and a single device that says unknown device code 28 institutions on PCI Express root complex.

Earlier today, I also had a problem with the DVD player, playback of a disc to another computer.

I tried to do some research prior to this announcement and I saw problems with the smart card drivers, but I can't find this driver on the download page for this laptop.

Any help would be appreciated.

You are the very welcome.

Here is the link to the other driver, you need to know.

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=321957&prodSeriesId=5229455&prodNameId=5229457&swEnvOID=4132&swLang=13&mode=2&taskId=135&swItem=ob-110813-1

Tags: Notebooks

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