Download latest drivers for PCI Serial Port on Windows 11, 10, 8, 7 (bit and bit). Install drivers automatically. Free software. Download the latest drivers for your PCI Serial Port to keep your Computer up-to-date. Option 1: Update PCI Serial Port driver via Device Manager 1) On your keyboard, press the Windows logo key and R at the same time to invoke.
 
 

How to Fix PCI Serial Port Driver Issues on Windows – Successfully Update or Download PCI Device Drivers on Windows

 
I think Dell Command Update works on the same premise. Some of my findings, MosChip NetMos Driver. It asked me for the serial number. But the good news is you can fix it. I one by one tried every driver but none of them worked as it displayed the driver for this device is invalid or something. Frank N St31n.