USB devices or ports not working on a Razer Blade

Updated: 22-Oct-2026 | Answer ID: 6288

This article shows how to fix USB ports or USB devices that are not working or not recognized on a Razer Blade.

USB ports or devices that are not working on your Razer Blade can be caused by the device itself, the cable, outdated software, or a hardware issue. Start with the basic checks below, then select the issue you are experiencing.

Basic checks

  1. Ensure that the issue is not caused by the accessory being connected.

    1. Connect the device to another computer to see if it is functional.

    2. If the device behaves normally while connected to this alternate computer, the port on your Razer Blade might be broken.

  2. If the issue persists, or you are experiencing an intermittent connection, swap out the USB cable and test if the accessory is functional.

  3. Connect the device to a different USB port on your Razer Blade.

  4. Ensure that your drivers are updated. See How to get the latest software and driver updates from Windows for more details.

Select your issue

USB device is not recognized (Unknown USB Device)

The USB device descriptor contains information about a USB device and is used by the client driver and by Windows OS to recognize the USB devices. If the USB device is not recognized by the OS, these are the error messages that can appear:

  • "USB device not recognized. The last USB device you connected to this computer malfunctioned, and Windows does not recognize it."
  • "One of the USB devices attached to this computer has malfunctioned, and Windows does not recognize it."

The Device Manager will show under Universal Serial Bus controllers an “Unknown USB Device (Device Descriptor Request Failed)" with a yellow exclamation point.

“Unknown USB Device (Device Descriptor Request Failed)" location

The Device status in your device properties will contain "Windows has stopped this device because it has reported problems. (Code 43). A request for the USB device descriptor failed."

Unknown USB Device properties.

The possible causes of this issue are the following:

  • The USB device plugged in is unstable or corrupted
  • The USB driver is unstable or corrupted
  • The Razer Blade requires a Windows update
  • The Razer Blade's motherboard requires updated drivers

USB-A

Note: Plug the device directly into the system's USB port. Do not use a USB hub.

  1. Open the "Device Manager".

    1. Press the Windows key and the “R” key together to open the Run dialog box.

    2. Type in “devmgmt.msc” in the Run dialog box.

    3. Click "OK".

  2. Browse the list and expand the “Universal Serial Bus controllers” category.

  3. Locate the USB device labeled "Unknown USB Device (Device Descriptor Request Failed)".

  4. Right-click on it and select “Uninstall”.

    Uninstall button location.

  5. Wait for the drivers to uninstall successfully.

  6. Restart your computer.

  7. Go to Windows Update and click “Check for updates”. Windows will reinstall the Razer HID driver automatically. If it does not reinstall automatically, check your Optional updates.

    Windows update window.

USB-C

Note: Plug the device directly into the system's USB port and make sure that your Razer Blade supports USB-C and USB4.

  1. Use the power adapter that came with your Razer Blade.
  2. If applicable, plug the USB device into an external power source.
  3. Remove any unused USB devices from the Razer Blade.

  4. Open the "Device Manager".

  5. Browse the list and expand the “Universal Serial Bus controllers” category.

  6. Locate the USB device labeled "Unknown USB Device (Device Descriptor Request Failed)".

  7. Right-click on it and select “Properties”.

  8. Look for the “Error code” and see Fix USB-C problems in Windows for the appropriate troubleshooting steps.

  9. If this still does not work, repeat steps 5 and 6. Right-click on it and select “Uninstall”.

    Uninstall button location.

  10. Wait for the drivers to uninstall successfully.

  11. Restart your computer.

  12. Go to Windows Update and click “Check for updates”. Windows will reinstall the Razer HID driver automatically. If it does not reinstall automatically, check your Optional updates.

    Windows update window.

USB mouse, keyboard or USB port is not detected

If you experience unresponsive external devices or USB ports, run the Windows Troubleshooter to identify the problem:

  1. Click “Start” then select “Settings”.

  2. Navigate to "Update and Security" > "Troubleshoot" > "Hardware and Devices".

  3. Click “Run the troubleshooter”.

    Note: The Troubleshooter will scan for issues and recommend steps to fix it.

    Click Run the Troubleshooter under Hardware and Devices

If the troubleshooter cannot resolve the issue, follow these steps:

  1. Restart your device and verify if the issue has been resolved.

  2. Right-click on the “Start” button and select “Device Manager”.

  3. Expand “Universal Serial Bus controllers”, right-click “USB Root Hub (USB 3.0)” and select "Properties".

    Right-click USB Root Hub (USB 3.0) and select Properties

  4. Go to the “Power Management” tab. If the checkbox "Allow the computer to turn off this device to save power" is checked, uncheck it.

  5. If the issue still persists, reinstall the USB driver. Under Device Manager, right-click USB Root Hub (USB 3.0) and select Uninstall. Proceed in uninstalling the USB driver.

    Right-click USB Root Hub (USB 3.0) and select Uninstall

  6. After the uninstallation is complete, select "Action" and click "Scan for hardware changes". It will detect the USB port and reinstall the driver.

    Under Actions, select Scan for hardware changes

  7. Restart the Razer Blade to complete the installation process and test the device.

  8. If the problem is not resolved, perform a system recovery or factory reset.

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