The is a robust business-class machine, but its serial port driver is often overlooked. If you are using Windows 10 or 11, the driver is not automatically installed via Windows Update – you must manually download the Intel Management Engine driver from Dell.

: A system restart is typically required for the PCI Serial Port to be recognized in Device Manager. Troubleshooting

If you have recently reinstalled Windows on a Dell OptiPlex 7010, or perhaps upgraded to a newer operating system like Windows 10 or Windows 11, you have likely encountered a frustrating sight in your Device Manager. There, under "Other devices," sits a yellow exclamation mark next to a perplexing entry: .

Support for OptiPlex 7010 (End of Life) | Drivers & Downloads