Open (type devmgmt.msc in the Start menu search).
Because "PCI Device" is a generic term, you cannot search for just "PCI driver." You must find the .
Once you have identified the manufacturer and model, download the driver from their official support page (e.g., Intel, Dell, HP). pci device driver windows 7
Use these to find the correct driver.
Find the item labeled (usually under "Other Devices"). Right-click it and select Properties . Go to the Details tab. In the drop-down menu, select Hardware Ids . Open (type devmgmt
If you see a yellow exclamation mark next to in your Device Manager, it usually means Windows 7 does not have a generic driver for that specific piece of hardware.
| Feature | API/Mechanism | |---------|----------------| | Access PCI config space | HalGetBusData , HalSetBusData (legacy) | | Enumerate PCI devices | SetupDiGetClassDevs with GUID_DEVCLASS_PCI | | Read/write BARs | MmMapIoSpace | | MSI-X support | IoConnectInterruptEx with VERSION | | Wake-on-LAN (PCI PME) | PoSetDevicePowerState | Use these to find the correct driver
PCI Device shows a yellow exclamation mark in Device Manager .