Windows 7 does not recognize my external hard drive and it does not appear in Device Manager but not in disk management

I'm trying to connect to my external hard drive, but the auto test failed
and I know that the problem is not the cable or anything like this cause it works on other 2 computers
It won't work on my laptop
I tried many solutions but most of them that the hard disk appears in disk management

and they change its trajectory

but in my case that's not she appears only in management device that I tried to uninstall it but also did not work
After that I did any suggestions? !

Go to your computer manufacturer's support web site and search for the latest Windows 7 drivers for your specific model number.

Download the drivers to a folder on your hard drive and install all of them, from the card mother/chipset drivers, LAN, Audio, USB, Graphics, SATA, Webcam, Etc., and so on.

List of computer manufacturer support sites:
http://Windows.Microsoft.com/en-us/Windows/help/contact-support/computer-manufacturers

If you have an Intel motherboard, you can try the Intel driver update utility: http://www.intel.com/support/detect.htm?iid=dc_iduu

Tips for solving common driver problems
http://Windows.Microsoft.com/en-us/Windows7/tips-for-fixing-common-driver-problems
Vista: http://windows.microsoft.com/en-US/windows-vista/Tips-for-fixing-common-driver-problems

Updated a hardware driver that is not working properly
http://Windows.Microsoft.com/en-us/Windows7/update-a-driver-for-hardware-that-isn ' t-work correctly

J W Stuart: http://www.pagestart.com

Tags: Windows

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