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Windows 7: Iomega external HD not detected by any computer

01 Jul 2012   #1

MS Windows 7 Ultimate 32-bit SP1
Iomega external HD not detected by any computer


I have an external hard drive of 500Gb from iomega, and it stopped working recentely.
It is not detected in Windows 7 and from what I know so far this is what I realised:

- It appears on "Device Management" and it says to be working properly
- No message of windows on the bottom-left corner saying that the drive cold not be connected
- It does not appear on "My Computer"
- The above applies even if I start in "Safe Mode"
- BIOS detects it when I try to change how the windows is botted
- the Hard Drive light flickers normaly when I connect the power supply
- Already tried to change the USB cables but the problem presists
- Tried in other computers, with the same results listed above

The problem is that I have important data that I want to recover from the drive, so fromating the drive must be the last resort.

Thanks in advance for your time and sorry for my english

My System SpecsSystem Spec
01 Jul 2012   #2

Windows 7 Ultimate x64 SP1

Is it possible to open up the external Iomega caddy and remove the drive? The drive enclosure might be the problem, so removing the drive and trying a different enclosure or installing it into another computer might work.
My System SpecsSystem Spec
01 Jul 2012   #3

MS Windows 7 Ultimate SP1 64-bit

Help us to help you.

Update your SevenForums System Specs
User CP (located on the top menu bar) |
Your Profile | Edit System Spec
(left-hand column)

To gather info, use Speccy (my favorite) or SIW or System Info

In the System Manufacturer Block, enter:
Manufacturer and Model and
ADD the word laptop, desktop, netbook or tablet.
For example:
Toshiba Satellite L305D notebook.

Provide full windows version info, for example:
MS Windows 7 Ultimate SP1 64-bit

Use the “Other Info” block for Optical Reader,
Mouse, touchpad, wifi adapter, speakers, monitor, etc

Scroll down and click on SAVE CHANGES.

You will find that in Speccy, you can select info from the display
using your mouse/touchpad and then paste that info into your specs.

SIW is a marvelous program, but the free version does not offer
this capability.
My System SpecsSystem Spec

01 Jul 2012   #4

MS Windows 7 Ultimate 32-bit SP1

Thanks for the reply!

Well the thing is I don't feel very safe with the "open the drive enclosure" thing but i can try if nothing else works.

It is the same in every computer. Think about a working Hard Drive, everything works properly in the system, the only diference is that it doesn't appear represented by a letter in my computer, it doesn't appear at all. I tried to install it in a new computer, and the steps are completed normaly: disc detected, installing, it is now installed and ready to use. But it is still the same thing, it doesn't appear in the explorer, it appears everyhere but the explorer.

Is there any software capable of tracking this kind problems related to external HD?

At the end like I said, if that kind of software cant recover my files or solve the problem, I will gladly pick up my screwdriver following the guideline you just gave me

EDIT: Thank you karlsnooks. Some of my specs have been updated.
My System SpecsSystem Spec
01 Jul 2012   #5

MS Windows 7 Ultimate SP1 64-bit

see post #3
My System SpecsSystem Spec
01 Jul 2012   #6

MS Windows 7 Ultimate 32-bit SP1

Quote   Quote: Originally Posted by karlsnooks View Post
see post #3
sorry, I saw your reply when I had already posted mine.
I have just updated some of my specs
My System SpecsSystem Spec
01 Jul 2012   #7

MS Windows 7 Ultimate SP1 64-bit

Run disk management:
This method gives you a display without the unneeded navigation pane.
WIN=key with Microsoft logo on top.

Maximize the output of Disk Management:
Maximize the output of Disk Management:
ALT-Spacebar key combo | X key (selects Maximize) |
Drag the field separators (such as between Status and Capacity) to show entire field.

Make a snapshot:
Drag the cursor around the area you want to snip.
File | Save as | select save location and name | Save

Post the snapshot:
Post a File or Screenshot in Seven Forums
My System SpecsSystem Spec
02 Jul 2012   #8

MS Windows 7 Ultimate 32-bit SP1

Sorry it took so long but I had to change the Windows language from Portuguese to English, and also my seven hours of sleep were required.

When I entered in DISKMGMT.MSC this is the first screen that comes up:

Name:  Capture1.PNG
Views: 16
Size:  109.6 KB

The choice doesn't matter because the outcome is the same:

Name:  Capture2.PNG
Views: 12
Size:  93.2 KB

At the end this is the result:


It is branded as "Unallocated". Hope it helps because this doesn't look good

EDIT: My Data Recovery Software can't locate the iomega HD.

My System SpecsSystem Spec
02 Jul 2012   #9

MS Windows 7 Ultimate SP1 64-bit

That's a start now:
Run diskmanagment in the manner described in the procedure I gave.
My System SpecsSystem Spec
02 Jul 2012   #10

MS Windows 7 Ultimate 32-bit SP1

Ok, sorry. Now I have followed faithfully the procedure the best I could as it was described:


If this is not what you want, please state it because the language barrier sometimes plays tricks. Thanks.

My System SpecsSystem Spec

 Iomega external HD not detected by any computer

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