USB-Serial Controller D drive not working

I have a Dell OptiPlex 3040 that started having issues with a USB scanner the other day. I noticed that in Devices and Printers, it’s showing USB-Serial Controller with a yellow exclamation mark under Unspecified and also shows the same thing under Other Devices in Device Manager.

I have used the Dell Assistant to update two chipset drivers and rebooted but it’s still showing that way. The other drivers that show needing to be updated are BIOS, network and serial ATA. I’ve tried to update it automatically and through Windows Update but that hasn’t fixed it. I’m not sure what else to do.



right click on it and then go to properties>details and choose hardware ids. then copy the id and paste it to browser and search which driver you need to install

Hello @Reginald

you can use Driver Pack solutition for install online driver.

Driverpack solution site link given below.