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How to recover usb flash drive not recognized
  • Author:urecovery
  • Publish Time:2018-09-09 09:07

First insert the usb device into the computer interface, then click the "Start" menu in the lower left corner of the desktop, click the "Run" command, type "cmd" command in the open box, click the "OK" button

Start a command prompt window and execute the following two commands respectively.
Reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v "DEVMGR_SHOW_DETAILS" /d 1 /t REG_SZ /f
Reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v "DEVMGR_SHOW_NONPRESENT_DEVICES" /d 1 /t REG_SZ /f

Type the "devmgmt.msc" command in the open box, click the "OK" button or right click on the "My Computer" icon on the desktop, select the "Properties" command from the pop-up shortcut menu, and switch to the "Hardware" option in the system properties interface. Card, click the "Device Manager" button below

Open Device Manager and click "View" - "Show hidden devices" on the menu bar

Double-click the "Universal Serial Bus Controller" project to uninstall all the items below.

Then right click on the "Universal Serial Bus Controller" item and the pop-up menu will select "Scan for hardware changes".

Unplug the USB device, then plug it in again, the system will automatically install the USB driver, is this good?

Hardware cause analysis

The BIOS is disabled by the BIOS (enter the BIOS and change "Enable USB Device" to "Enable")
The front USB cable is not connected correctly (try the rear USB interface)
The USB interface voltage is insufficient (try another interface)
Motherboard and system compatibility issues (try to refresh the BIOS)
The USB device itself is damaged (this can be known immediately by testing it on another computer)
USB driver problem (If the above method still can't solve your problem, please download the latest driver from the device manufacturer's official website to install)