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Hi I have an external hard drive which for some reason is no longer showing up on my pc It doesnt show in device manager either. Actually they are 3 external MAXTOR hard drives that have the same problem. Can u please tell me how to fix this is as I have very important data on there which needs to be recovered. New update: The external hard drive as shown up however it is saying in disk management that it is unknown and unreadable.

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  • midnightstud Jan 06, 2009

    how do I go about deleting the upper and lower filters in regedit

  • midnightstud Jan 06, 2009

    markrobin743

    I tried running chkdsk in command prompt but I still have the same problem it wont read the disk.

  • midnightstud Jan 06, 2009

    Hello are you there? We have tried everything but nothing. Any other suggestions?

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This is usually a corrupt partition table on the drive (since the drive is there but unreadable)
you'll need to get to a command prompt
change to the drive in question eg e drive or f drive (whichever your external drive shows up as)
type in
chkdsk /p

the system should then check the drive and fix any partition table problems....you should then be able to access the data on the drive...let me know what happens

Posted on Jan 06, 2009

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Try deleting upper and lower filters in regedit (Registry Editor). See if this helps.

Also make sure that other USB devices can be read on your system.

Double check BIOS settings as well and try to reload default settings. (Make sure USB is on)

Posted on Jan 06, 2009

  • Anna Marie Abueva Jan 06, 2009

    HI! Do you have any other cables for your external hdd? We can start by doing so to isolate issue. Or better yet, if you have another pc, try hooking it up there or from a friend's pc. Anyway, it's external. If it's detected there, issue is on settings/configuration of pc and not the hardware, could be the OS as well.



    But, if it is hardware, it could be the USB cable connection only, or worst, the hdd itself... =(

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1 Answer

How can i know my computer specifications


Hi paul_murr364,


Hold the Windows button found between Ctrl and Alt buttons and press Pause/Break, the display shows the specification of your Processor and Memory (RAM).
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It can even show external peripherals such as printers, bluetooth dongle etc.

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Tip

Using Windows Disk Management Utility to Manage Internal and External Disks


Disk management utility will help you see all the drives that are connected to your computer, including internal hard drives, CD or DVD Drives, and removable storage like USB sticks and external hard drives. Using this utility, you can check for attached drives that are not visible in windows when attached to your computer. You can also format drives, change drive letters, mark a partition as active and delete partitions. A word on caution about using the Disk Management Utility: This utility can cause destruction of data. If you are not sure of what you are looking at and uncomfortable with using this utility you should consult with an advanced user before making any changes to drives using this utility.


The Disk Management utility can be accessed in two different ways.
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Click on Administrative Tools,
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#2- Right click on you “My Computer” Icon
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The Computer Management window is broken down into 3 sections.

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The lower section will show the drive description, drive size and drive condition (online or off line) in small box on the left side of that section. Disk drives will designate a “Drive” and a number. Drive 0 is usually your internal hard drive. Then it would list drive 1, drive 2, etc, depending on how many internal and external drive sources you have connected to your computer. Then it will list your CD drives and generally show their drive letter assignments.

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A drive this is having a problem may show that it needs to be formatted (status as Unformatted). This can be done from this window. An external drive, whether it is a hard drive or CD/DVD drive, can have the letter designator change done if you want to organize your external drives. There are times when a drive will not show up because the drive letter that they are programmed to use are taken. Most USB drives are programmed to us the letters “F” or “G”. In this area, you can assign the USB drive any drive letter that is not being used and this will make it visible in windows.


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Hi I have an exterbnal hard drive which for some reason is no longer showing up on my pc It doesnt show in device manager either. Atcually they are 3 external MAXTOR hard drives that have the same...


Hi
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