When "USB device is not recognized", 1. First check whether the device and interface are normal, and try to replace the USB interface, data cable or device test; 2. Ensure that the device is powered normally, especially high-power devices require external power supply; 3. Restart USB related services, such as USB Arbitrator Service, or directly restart the system; 4. Update or reinstall the USB driver, and process the USB controller driver one by one through the device manager; 5. Adjust the power management settings and uncheck "Allow the computer to turn off this device to save power" to prevent the system from being powered off and causing the identification failure. Most of the above steps can solve the problem. If it is still unrecognized, it may be a failure of the device itself.

The prompt "USB device is not recognized" in Windows 10 is usually due to driver problems, hardware failures, or abnormal system settings. When encountering this situation, don’t rush to change cables or computers, in fact, you can solve it yourself most of the time.

Check whether the USB device and interface are normal

This problem is not necessarily a system problem, but may also be a problem with the hardware itself.

• Try to replace the USB port : Some USB ports are unstable or damaged in power supply, try changing the interface.
• Replacement data cable or device test : Sometimes the cable is broken or there is a problem with the device itself, such as the USB drive or mobile hard drive failure, which may also lead to identification failure.
• Check whether the device is powered normally : Some high-power devices (such as mobile hard drives) may require external power, otherwise they will not work properly.

Restart USB related services

Windows has many backend services that support hardware recognition. Sometimes these services are stuck and will cause USB device recognition to fail.

You can do this:

• Press Win R to open the run window and enter services.msc to enter.
• Find the following two services and right-click to select "Restart":
  • USB Arbitrator Service
  • Device Management Wireless LAN service (although the name is a bit strange, it can sometimes affect recognition)

If you cannot find these services, you can also try restarting the entire system to see if there is any improvement.

Update or reinstall the USB driver

Drive problems are a common cause of this prompt. You can manually update the USB controller driver:

• Press Win X and select Device Manager.
• Expand Universal Serial Bus Controller.
• Right-click on each device with the word "USB" and select "Update Driver" or "Uninstall Device".
• Then unplug and re-insert the USB device, and the system will automatically reinstall the driver.

If you are not sure which drivers should be moved, you can right-click on "Universal Serial Bus Controller" and select "Scan to detect hardware changes".

Adjust power management settings

Sometimes in order to save power, the system will turn off the power supply of the USB interface, which will also lead to identification failure.

The operation method is as follows:

• In Device Manager, go to "Universal Serial Bus Controller" again.
• Find "USB Root Hub" or a project with similar name, right-click and select "Properties".
• Switch to the Power Management tab and uncheck "Allow computer to turn off this device to save power."

This setting is more practical for users who frequently plug and unplug the device, and it is recommended to keep it off.

Basically these common ways of dealing with it. In most cases, you can solve the problem by trying it in sequence. If it still doesn't work, it may be a problem with the device itself.

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