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Computer identify external hard drive ,ut no files display

Computer identify external hard drive ,ut no files display

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External hard drive cannot identify the general situation is the mobile hard disk plug in USB the computer cannot identify and the external hard drive keep “tap-tap”soundthis is a typical phenomenon for cannot identify removable hard driveai te data recovery give you the answer as following:


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Computer identify external hard drive ,ut no files display

Features :

  • external hard drive is a portable storage product, it has huge storage volume, can save data well. But if some win10 users connect the USB drive to computer but cannot it be identified, how to do?

    There are many possible reasons why the external hard drive cannot be identified, but they are generally not the failure of the USB port or the external hard drive itself. Therefore, it is necessary to take the surrounding correlation into consideration when troubleshooting.

    1.The reason of the system or the system-provided drive

    USB port cannot be identified by the computer, if it is the reason of the system or the system-provided driver, you can press the following method to fix.
    a. Press F8 when booting up to enter the safe mode and then exit. Choose reboot or shutdown then boot up again,then enter the normal mode (fix the registry).

    b. If the failure still continue, please use the system-provided to system restore, restore to the time when this failure does not occur (if the normal mode recovery fails, please press F8 to enter the safe mode and use the system restore).

    c, if the failure still continue, use the system disk to fix, open the command prompt and enter SFC /SCANNOW (there is a space between SFC and /), plug in the original system disk to fix system, the system will automatically compare the fix.

    d. If the failure still continue, set the cd-rom drive as the first boot device in the BIOS to plug in the system installation disk and press the R key to select "fix and installation".

    e. If the failure still continue, it is recommended to reinstall the operating system.

    2. Set CMOS parameters

    For those who have never used USB external device, even if the driver is installed correctly, the system may fail to detect USB hard drive. This is mainly because the default CMOS port of the motherboard is closed. If it is not set to open state, then Windows cannot detect the external hard drive naturally. To solve this problem, we can reboot, enter the CMOS setting window, and set "Assign IRQ For USB" to "Enable" in the "PNP/PCI CONFIGURATION" section so that the system can Assign the available interrupt addresses to the USB ports

    3. Insufficient power supply

    Due to USB hard drive also needs to consume a certain amount of power when it is working, if the power is obtained directly through the USB port, it is likely to be under powered. And it may be caused because there are too many peripherals connected to the USB port. Suggest to use charged USBHUB or to use adapters of USB to PS/2. It is also possible that WindowsXP has turned on the power-saving mode by default, resulting in insufficient power supply to the USB port and intermittent failure of the USB port. Right-click my computer/properties/hardware/ device manager, double-click the "universal serial bus controller" to several "USB Root Hub" double-click any one, open the properties dialog box, switch to the power management tab, remove the check in front of "allow the computer to turn off this device to save power", click ok to return to,amend each USB RootHub attribute successively after the reboot the computer. USB device can recover to stable operation, set the frequency as low as possible.

    4.USB extension cord failure

    In addition to the above two reasons, there is also a possibility that the USB port type is inconsistent, which causes the external hard drive cannot be used. For example, the USB port configured by the computer is 2.0 standard, but the purchased external hard drive is USB3.0 standard port, which requires the connection cable between the computer and the external hard drive must support USB3.0 standard

    5.The Windows version is too low

    To this situation, one solution is to upgrade the operating system to Windows 7 or above, and another is to download patches from Microsoft's official website.

    6.the external hard drive character is not shown

    If there is a drive character but not show out, the solution: right-click on my computer/ management/storage/disk drive management, then right click on the "removable disk drive" icon, click " change the drive and path "option on the shortcut menu, and click the" add "button in the subsequent screen, then select" assigned drive letter ", at the same time choose a appropriate drive character from the drop-down list next to the option, then click ok

    7.Improper system set up

    Some Windows users, after installation of the driver, can see the external hard drive from the device manager, but there is no corresponding disk identifier in the explorer, this is caused by the  improper system set up. Double-click external hard drive In the explorer, and click on the pop-up window "properties" button, at this point you can see the four options of  disconnection, deletable, synchronous data transfer and Int 13 unit, the option before deletable is not ticked by system default, only need to tick this option to reboot computer, then you can see the new external hard drive in the explorer.

Computer identify external hard drive ,ut no files display

  • 1 Choose recover mode undeleted ,formatted,lost partition or other for files
  • 2 Select the device where the missing file is located. If it is an external device, please connect the external device. if you are using a mobile phone, please debug to the developer mode and click the Next button.
  • 3 Check the type of file to be restored
  • 4 Select the storage location for the restored files and click the button
  • 5 Click the "startrecover" button to start recovering the lost files
  • 6 AVI file recovery is complete, You can find the lost file in the saved directory location
  • >

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