An outdated driver can cause "Code 10" or "Code 43" errors, leading to system hangs during boot.

Are you trying to connect a to this serial port, or are you just trying to clear a Device Manager error ?

Right-click on and select Update driver . Choose "Search automatically for drivers."

Look under for anything mentioning "Serial," "UART," or "Communications Port." Common Troubleshooting: "The Driver Could Not Start"

Since the PNP0500 is a standard architecture, Windows usually has the driver built into its internal "driver store." Press and select Device Manager . Expand the Ports (COM & LPT) section.

Right-click the PNP0500 device in Device Manager, select Uninstall device , and restart your computer. Windows will attempt to reinstall a clean version of the driver upon reboot. Conclusion

Visit the support page for your motherboard (e.g., ASUS, MSI, Gigabyte).