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Seagate 250GB USB external harddrive was working now it is not. Cannot see it in Disk Management. In Device Manager, USB controllers the harddrive shows up as Unknown Device when I plug it in. In Properties it shows No drivers are installed for this device in Device Status. Any suggestions?

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Unplug seagae usb external h/d
Device manager>Under usb= ,uninstall the device.
run: RESTORE, choose the last check point, reboot,then plug in the h/d in your usb.

Posted on May 06, 2008

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Can you see it under "Device Manager" or "Disk Management"?
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First, please disconnect all USB devices and then perform the following steps:


Click "Start" button, type "devmgmt.msc" (without quotation marks) in the "Search" bar and press "Enter". Click "Continue" if necessary.



In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the Host Controller, click "Uninstall" and click "OK".



Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".



Then, restart your computer and Windows 7 will reinstall all USB controllers automatically.


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click start control panel administrative tools computer management device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X


you will need to update/reinstall drivers

right click to reinstall drivers


if you can see your usb but its not working

ports(com&lpt)right click update driver


sometimes the wires inside the cable will be damaged due to bending or stretching or placing heavy equipment upon the cable


just replace the cable of the hard disk, when you plugged the external disk drive you got that windows could recognize the USB device change the cable everything should work fine again,



if you can see your usb drive but its not working

ports (com&lpt) right click update driver if this fails to fix the problem


check the USB leads that attach to the motherboard usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems to a computer and its parts


if this fails to fix the problem
Downloads to Recover Your Files and Save Your Bacon and 10 Best Free Hard Drive Utilities.


Some addition links found on Google
http://www.datarecoveryreview.net/


http://www.cleverfiles.com/


http://www.easeus.com/resource/hard-disk-data-recovery.htm


hope this helps

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click start control panel administration tools computer management device manager look through all of your devices if you see a yellow question mark?or exclamation mark ! or red x
right click to reinstall drivers or


if you can see your usb but its not working
ports(com&lpt)right click update driver


sometimes the wires inside the cable will be damaged due to bending or stretching or placing heavy equipment upon the cable


just replace the cable of the hard disk, when you plugged the external disk drive you got that windows could recognize the USB device change the cable everything should work fine again,

check the USB leads that attach to the motherboard usually red-white-green-black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems

if this fails to fix the problem
you might have to install a usb 2 or 3 card they are cheap and easy to install you can buy these on Ebay very cheap
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click start control panel administration tools computer management device manager scroll through all of your devices if you see a yellow question or exclamation mark ? ! or a red X you will need to update the drivers for this device right click select update driver/reinstall driver
if you can see your usb device but its not working sroll to Ports(Com&Ltd) right click to update driver if you computer came with a motherboard disk the drivers could be on it
hope this helps you

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click start control panel administrive tools ,computer management ,device manager look through all of your devices if you see a yellow question mark?or exclamation mark ! or red x
right click to reinstall drivers or
if you can see your usb but its not working
ports(com&lpt)right click update driver
if your computer came with a motherboard disk the drivers could be on it
sometimes the wires inside the cable will be damaged due to bending or stretching or placing heavy equipment upon the cable,
just replace the cable of the hard disk, when you plugged the external disk drive you got that windows could recognize the USB device change the cable everything should work fine again,
check the USB leads that attach to the motherboard usually red-white-green-black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems"
hope this helps

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Click Start
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Click Disk Management (local)
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Try connecting it to another computer. If you can see your data then back it up etc.
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There is a possibility that the hard disk has died and you will have lost your data. If you are desparate, hard drive data recovery companies charge an arm and a leg to recover data from dead drives.

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