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Question about Seagate (ST3100203U2-RK) (ST3100203U2RK) 100 GB Hard Drive

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Seagate hard drive

I have just restored my computer, and although my seagate hard drive is showing in device manager, it not showing in my computer so I cant access it, or find anything that is saved on it.

Posted by jeanette flack on

  • 3 more comments 
  • jeanette flack Jul 19, 2007


  • jeanette flack Jul 20, 2007

    Ive tried that but still not showing, somehow I need to manualy add the device to my computer folder, but dont know how to do it

  • m777 Mar 10, 2008

    i have seagate external hard drive and it fall down , now its ***** work again , windows cant recognize it ???

    How it can work again ?

  • Anonymous Sep 09, 2008

    I have a Seagate External Hard Drive . I have things on there from my old computer which had Windows XP . My new computer has VISTA and does not see it. What do I do ?

  • jp_1omb Feb 12, 2009

    my Saegate Sata 2.5 is not showing in 'my computer.' I was told that if it was disconnected this problem sometimes happen? It WinXP is supposed to auto recognize? What can I do to get it recognized again?



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Is this internal or external drive?

Posted on Jul 19, 2007

  • Anonymous Jul 19, 2007

    Assuming that it has worked previously.
    go to control panel/system/ device manager/hardware and check out the USB connections[assuming it is USB] are there any yellow tabs showing?
    If yes click on the drive and then driver and then rollback driver.
    If no yellows showing make sure the drive is powered up[ yeah yeah I know but it happens]
    Then go to bottom task bar and the safely remove
    hardware icon and click to see what hardware is showing as active.
    Remove the USB connection and reinsert into another slot if poss or swap with something.

    try all ese thing include an occasional reboot
    Come back let us know what is going on.

  • Anonymous Jul 20, 2007

    the next question- I should have asked first time around
    Here it is
    how is it powered- external or from the USB bus?

    If it it from the USB bus then the chances are the Computer PSU is not delivering enough oomph to deliver.
    So disconnect all other USB devices and see what gives



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My seagate 500gb external hdd recognize in device manager.

I would get a bootable linux distro and boot up and use the partion manager there. (knoppix) If that does not work I would get the factory diagnostic tool from seagate and if it gave errors return it for warrenty or if not under warrenty least you will know there is something funny with the hardware.

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It sounds as though you have one of the following problems:

  1. Dirty contacts that can be cleaned with CRC electronic component cleaner;
  2. A faulty drive that may have been dropped at some point in time. Your drive may have a three-year warranty and Seagate will replace it. Just go online and provide the serial number; and.
  3. You may have to reinstall the drivers. The Seagate website can provide this if needed.

My seagate 1TB external hard disk (the little compact one) cant be read anymore. Was working fine a couple of days ago. The lights on top are flashing constantly. After the drive is plugged into the...

Right click "My Computer" >properties> hardware> device manager. Expand "disk drives". Right click your seagate drive and click uninstall. Reboot your computer; the drive should automatically be reinstalled.

External 500gb hard drive not readable

Check the partition size in Disk Management (if running Win7 - download a free Partition Manager if not) and see if the system is seeing the partition correctly. Seagate has recovery software available on their website but you may just have to repartition and reformat.

I reformatted my C: drive and ever since Windows will not recognize my Seagate External Free Agent hard drive. It shows up under ?My Computer? as Removable Disk (I: )? It used to be listed as Seagate...

Try connecting it to another computer. If you can see your data then back it up etc.
After you have recovered your data connect it to your computer, from Disk Manager, remove the partition, recreate it again and then format the drive, hopefully your external drive will be operational again.
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.

Can't see Seagate external hard drive on Vista devices with remov


If the drive is not showing up in My Computer but is showing in Device Manager then you most likely need to assign a drive let you the drive. The links below will help you do this.

How to change your drive letter in Windows Vista and Windows 7

How to change your drive letter in Windows XP

Let me know if you have any more problems or questions


Seagate driver doesn't show up in hard disk list

Are you able to see the drive here in disk management?
capture-zgoyxsl3jevnluavvt131fnj-2-0.png If so you can right click on the drive and create a new volume and take all the default setting.

I’m happy to help further over the phone at


It recognizes the new hard drive as a DVD drive

have you partitioned and formated it ? unless you do that to the drive it will not show up with a drive letter in windows. go into control panel, administrive tools, computer management, disk management - there you should see all your drives and you can partiton, format, assign or reassign drive letters to them. hope this solves your problem.
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