The issue occurs after a change to the secure boot configuration. Thank you so much. Then restart the PC. Message 5 of 7. This works for my windows 10 hp. Let us know how it goes! By using this site, you accept the Terms of Use and Rules of Participation.

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J.D. Hodges

Be connected to the internet. Thank you for your kind comment Reinhard. Didn’t find what you were n6c400 for? After you reboot, you should have decent graphics but no Aero as the Intel graphics adapter in that model is not fully windows 7 capable.

Hi Grace, Thank you for your kind comment.

ACPI\HPQ0004 HP Compaq nc6400 drivers

That file will be located in C: You’re very welcome, Chuck. This driver version sp By using this site, you accept the Terms of Use and Rules of Participation.


Something has been modified in Windows 10 v possibly a compatibility cokpaq That was driving me nuts. Click on the driver tab. Message 4 of 4.

I saw you helped Dell users with a similar problem … Can you help me with this one too? Hi Aleksandr, Thank you for your comment, I am very glad it worked for you! That file will be located in C: Close out of any error windows.

Microsoft Windows 7 bit. I have the same question. Hi Birdman, Thank you for your comment. This is what I did just to get the device to install and not have any errors. But, if the computer has an hpp graphics card, the screen remains blank because the add-in card is not in the secure axpi database the user cannot see the prompt and, therefore, cannot enter the authorization code so the computer reboots and prompts for the authorization code again.

Solved: Unknown device Hardware ID SMCF – HP Support Community –

Hopefully this is on the right board Please help as I really want to get the right drivers for Windows 7 so my laptop will be in good shape. Message 3 of 4. Enjoy your nice HP Elitebook and have a very merry Christmas and a happy new year! The ones I need are as follows: Have googled it without much luck. Best regards and have a great weekend, -J. Excellent Keter, I am very glad it helped! Hi Teo, Thank you for your comment!


Then restart the PC.

ACPI/HPQ PCI Unknown Device Driver [solved]

Click on update driver. Click on the driver tab. Message 5 of 7.