Click . Windows will scan the folder, locate the matching .inf file for the hardware ID, and complete the installation. Conclusion
Many users mistakenly try to force the generic 16550 UART driver or use Windows Update’s automatic search. These attempts fail because: exclusive download driver pci serial port 60806a
Older serial port expansion cards may rely on drivers that lack a modern Microsoft digital signature. If Windows blocks the installation: These attempts fail because: Older serial port expansion
Many PCI serial cards use the MCS9865 or MCS9900 series chips. You can find these at ASIX’s official support site . For those who want to dig deeper, here
For those who want to dig deeper, here are some technical details:
: If your port is built into a pre-built system, visit the Lenovo Support or Dell Support sites.
If the driver package only contains .inf , .sys , and .cat files without an installer, perform a manual injection: Open and right-click the PCI Serial Port . Select Update Driver > Browse my computer for drivers .