Find the device labeled or "PNP0500" (usually under "Other Devices" or "Ports (COM & LPT)"). Right-click it and select Update driver . Choose "Browse my computer for drivers" .

Yes, but it will reappear on reboot. Uninstalling the device does not remove the driver; it removes the reference. You need to disable the serial port in BIOS or physically remove the hardware.

Elias translated it. P-N-P-0-5-0-0.

Deep in page 12 of a thread titled "Serial Woes," he saw a post from a user named ByteCommander77 .

Look under Ports (COM & LPT) . If it has a yellow exclamation mark, it's missing a driver. Update Driver: Right-click the device -> Update driver . Choose Search automatically for drivers . Manual Install (If needed):

Identify your motherboard model (e.g., ASUS, MSI, Gigabyte).