How to fix a USB error when I plug my Nikon Coolpix camera to a usb port?

Connect the powered-off COOLPIX directly to the PC with Nikon’s supplied USB cable, turn the camera on after connecting it, and avoid USB hubs; this is Nikon’s camera-specific procedure for the “USB device not recognized” error.^1^

1. Rule out the connection first

1. Turn the camera off and disconnect it.
2. Ensure its battery is sufficiently charged.
3. Connect the cable securely at both ends, preferably using the supplied Nikon cable.
4. Plug it directly into another USB port on the computer—not a hub, dock, keyboard, or monitor.
5. Turn the camera on and wait for Windows to detect it.
6. If possible, test:
   • A different known-good data-capable USB cable.
   • The camera on another computer.

If another cable works, replace the cable. If the camera fails on multiple computers and cables, use a memory-card reader to retrieve the photographs and contact Nikon support.

2. Remove the failed USB entry

If Windows still reports that the device is not recognized:

1. Right-click Start and select Device Manager.
2. Expand:
   • Universal Serial Bus controllers
   • Portable Devices
   • Cameras or Imaging devices
3. Locate Unknown USB Device, the Nikon camera, or any entry with a yellow warning icon.
4. Right-click it and select Properties.
5. Note the message and error code under Device status. Microsoft recommends using this code to select the appropriate Device Manager repair.^2^
6. Select Driver → Uninstall Device → Uninstall. Disconnect the camera first if Windows permits.
7. In Device Manager, select Action → Scan for hardware changes, then restart Windows.
8. Reconnect the camera using the direct-connection procedure above.

Uninstalling the device entry does not delete photographs from the camera. Microsoft documents uninstalling the affected device and scanning for hardware changes as the driver-reinstallation procedure for several Device Manager errors.^3^

3. Install Nikon software and available drivers

Install the current NX Studio, which includes Nikon Transfer 2 and installs Nikon camera support components. Nikon lists NX Studio as compatible with Windows 11.^4^

Obtain the current software, firmware, and model-specific instructions from Nikon’s Download Centre.^5^ After installation:

1. Restart Windows.
2. Start NX Studio or Nikon Transfer 2.
3. Connect the powered-off camera directly to the PC.
4. Turn it on and check whether Nikon Transfer detects it.

Also check Settings → Windows Update → Advanced options → Optional updates. Install any relevant USB, chipset, or camera driver updates, then restart. Optional driver updates are not installed automatically.^6^

Interpreting the result

• Works with another cable: the original cable is faulty or charge-only.
• Works in another port: the original port or attached hub is the issue.
• Works on another PC only: install the PC manufacturer’s recommended chipset/USB drivers.
• Still appears as “Unknown USB Device (Device Descriptor Request Failed)” with multiple cables and PCs: the camera’s USB connector or internal USB hardware may require Nikon service.
• Photos are needed immediately: remove the memory card and use a compatible card reader.

References

1. Support Articles
2. [Windows 11](https://support.microsoft.com/windows/hardware/usb/fix-usb-c-problems-in-windows)
3. Error codes in Device Manager in Windows | Microsoft Support
4. Windows 11 Compatibility Announcement (update April 2022)
5. SERVICE & SUPPORT
6. [Windows 11](https://support.microsoft.com/windows/hardware/drivers/automatically-get-recommended-and-updated-hardware-drivers#summary)