Problem with usb driver

[mayankbhushan26]

Whenever i am inserting any usb device such as pendrive, cardreader , mouse receiver etc. It is showing unknown device . I tried uninstalling it but nothing happened . When i am starting my pc without inserting any device unknown device is getting automatically installed

 

[Ralston18]

Try reinstalling the USB drivers.

Google "how to reinstall usb drivers windows 7" and filter the search to the last year or so.

Follow the procedures and see if the problem ends or continues.

Example link:

https://support.microsoft.com/en-us/help/2654149/error-usb-device-not-recognized-when-you-try-to-access-a-usb-external

What motherboard are you using and what USB devices do you use?

Any USB hubs (with or without an external power connection)?