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Windows 7: Hard Drive works internally, but not externally.


09 Aug 2013   #1

Windows 7
 
 
Hard Drive works internally, but not externally.

Hello everyone,


I've got a Seagate Momentus hard drive taken from a laptop that I intend to use as an external storage device. When plugged directly into my laptop's hard drive slot, it works fine. When I try to use it externally with an enclosure, it is not recognised (on the same computer from which it was taken) by either Windows Explorer or Disk Management (yes I did a rescan).

When plugged into another laptop via the enclosure, however, it is detected in Disk Management, although not in Windows Explorer. Unfortunately, Disk Management doesn't provide me with any useful options for reformatting it. It simply says "no media", and doesn't detect any data or capacity. When using SeaTools for Windows while still plugged in externally with this secondary laptop, it fails virtually all tests and refuses a full data scrub.

I have since plugged the hard drive back into my primary laptop's hard drive slot (from which it was taken) and am running Seatools (so far, so good).

Any idea what's going on? How can I get this hard drive to operate as a normal external drive? Thanks in advance.

UPDATE - I reinserted the hard drive into my laptop, successfully reformatted it via Disk Management, chose not to assign it a drive letter, and I still have the same problems. My secondary laptop detects the hard drive when connected externally via USB hard drive enclosure within Disk Management, but not within Windows Explorer. More frustrating - when connecting the hard drive externally to my primary laptop via USB hard drive enclosure Windows will not detect it anywhere - neither within Disk Management or Windows Explorer. By the way, I am using Windows 7 64-bit. Anyone have any ideas?


My System SpecsSystem Spec
.

09 Aug 2013   #2

Windows 7 64-bit, Windows 8.1 64-bit, OSX Maverick
 
 

Maybe the external enclosure or USB cable is bad, that prevents Windows recognizing the drive? Try changing the USB cable or the enclosure...
My System SpecsSystem Spec
09 Aug 2013   #3

Windows 7 Home Premium 32 bit
 
 

Hi,

Would you mind posting the screenshots of Windows Disk Management to see how your external HDD looks on a) your primary Laptop ( if it shows up) and b) on your secondary laptop?

Disk Management - Post a Screen Capture Image

Another question: How does your primary laptop work, if you had removed the drive from it?
My System SpecsSystem Spec
.


09 Aug 2013   #4

Windows 7
 
 

Quote   Quote: Originally Posted by Cr00zng View Post
Maybe the external enclosure or USB cable is bad, that prevents Windows recognizing the drive? Try changing the USB cable or the enclosure...
Nope, the enclosure works fine with another hard drive. The USB cable is also in proper working order.
My System SpecsSystem Spec
09 Aug 2013   #5

Windows 7
 
 

Quote   Quote: Originally Posted by jumanji View Post
Hi,

Would you mind posting the screenshots of Windows Disk Management to see how your external HDD looks on a) your primary Laptop ( if it shows up) and b) on your secondary laptop?

Disk Management - Post a Screen Capture Image

Another question: How does your primary laptop work, if you had removed the drive from it?
The hard drive in question which was removed from my primary laptop was a secondary hard drive. The OS is installed on the laptop's primary hard drive.

Here is a screenshot of Disk Management with the hard drive in question being connected externally to my secondary laptop - Disk 1 K is what is shown.

http://img838.imageshack.us/img838/8013/i44x.png
My System SpecsSystem Spec
09 Aug 2013   #6

Windows 7 Home Premium 32 bit
 
 

OK, at the moment the only explanation I could think of is that the Seagate Momentus drive is a hybrid drive part flash memory and the rest conventional platter. Your external enclosure is unable to handle this unconventional drive while it can the conventional HDDs.
My System SpecsSystem Spec
10 Aug 2013   #7

Windows 7
 
 

Nope. Anyone else have any ideas?
My System SpecsSystem Spec
10 Aug 2013   #8

Windows 7 Home Premium 32 bit
 
 

OK, you are a non-believer.

Try using a double-headed USB cable for more power. It may work.

Warning: The extra power drawn may kill the enclosure electronics. Some enclosures may be able to handle it and some may not. Try at your own risk. A USB 3 enclosure may be a better option as those are designed for more power from USB 3 ports but still ....at your own risk.

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Views: 6
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My System SpecsSystem Spec
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 Hard Drive works internally, but not externally.




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