Hi, I would recommend you to try the following steps to check the USB ports. Firstly I would advise you to uninstall and reinstall the USB root hubs from the device manager. Please follow the steps below to reinstall the USB root hubs: If the USB ports are still not working, please click on the link mentioned below and download the USB 3.0 host controller. [URL] Hope this helps. please reply for any further questions.
Hi all, I recently purchased the Dell Vostro 3550 (2 days back) and i just figured out that only one of the 3 usb ports are working.  1 USB PORT AT BACK (USB 3) not working 1 USB PORT RIGHT (USB 3) not working 1 USB LEFT (USB 2) works 1 USB LEFT (USB 2.0/ SATA) WORKS  Why not the other. I even updated BIOS. HELP PLEASE
Dell Vostro 3550 USB PORT NOT WORKING