This does not indicate that there is a problem with the device. Expand the Universal Serial Bus controllers section.Ī black down-arrow on a white field on a device resource in Device Manager indicates that the device has been disabled.Type devmgmt.msc in the run dialog box and press the Enter key.Press the Windows + R key on the keyboard.To view the USB devices in Windows Device Manager: Windows Device Manager can help you identify and troubleshoot any device driver-related issues with the USB device. If the test fails, ensure to write down the error code and validation code, and contact Dell Technical Support.If the test passes, go to the next step.Follow the on-screen prompts and respond appropriately to complete the diagnostics.

Use the arrow keys to select Diagnostics and press the Enter key.When the Dell logo appears, press the F12 key to enter the One-time Boot Menu.Running Dell SupportAssist Pre-boot System Assessment or enhanced Pre-boot System Assessment (Dell PSA or ePSA) If the computer can boot into Windows and has an active Internet connection, run a USB test on the Dell computer using Dell SupportAssist.

Running hardware diagnostic test using Dell SupportAssist Dell offers both built-in and online diagnostics. To determine if your Dell computer is experiencing a hardware problem, it is recommended that you first run a hardware diagnostic test. Running a hardware diagnostic test can help you identify hardware-related problems and provide you with troubleshooting steps to help resolve the issue.

Dswindows wont recognize all usb ports