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- HP Community
- Notebooks
- Notebook Software and How To Questions
- 3 missing PCI bus 4 drivers ,functions 1,3 & 4

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08-09-2019 06:09 AM
Not sure when this happened, been chasing problems for several weeks. problems have come to notice since un-installing Nortons & installing other freeware anti-virus programs
Solved! Go to Solution.
Accepted Solutions
08-09-2019 07:42 AM
Hi:
Please post the hardware ID's for the devices that need the drivers.
Use this guide for how to find the hardware ID for a device...
https://www.howtogeek.com/193798/how-to-find-drivers-for-unknown-devices-in-the-device-manager/
08-09-2019 07:42 AM
Hi:
Please post the hardware ID's for the devices that need the drivers.
Use this guide for how to find the hardware ID for a device...
https://www.howtogeek.com/193798/how-to-find-drivers-for-unknown-devices-in-the-device-manager/
08-11-2019 02:05 AM
The missing drivers were all JMicron PCIe MS, SD, SD/MMC & XD Host Controllers. Associated I guess with the card reader.
Probably helps explain why a lot of micro SD & SD cards were showing up as "write protected".
08-11-2019 07:04 AM
You're very welcome.
I was pretty sure those were the drivers you needed, but I don't like to waste my time and your time guessing and being wrong.
Glad you found the right drivers yourself by reading the entire article.