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Windows 7: Doesn't show external drive anymore but visible in the disk management

01 Jun 2010   #1
Hedge

Windows 7 RC1
 
 
Doesn't show external drive anymore but visible in the disk management

I have a 2,5" 500GB external hard-drive with a single partition (NTFS).
I can see it in the disk management utility (see attached screenshot) but it doesn't have a drive letter nor can't I assign one.

Attached to another PC running Windows XP it says "unknown partition" but also error-free and NTFS.

The problem could have been triggered by unplugging the harddrive without securely removing it.




Attached Thumbnails
Doesn't show external drive anymore but visible in the disk management-disk-management.png  
My System SpecsSystem Spec
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01 Jun 2010   #2
ryo

 
 

is it have files on that external hdd??

on Disk Mgmt, right click the offending disk.
Select Change drive letters and path.
Assign a drive letter.
My System SpecsSystem Spec
01 Jun 2010   #3
Hedge

Windows 7 RC1
 
 

Yup it has about 300GB of files.

Everything is greyed out besides delte volume (which I won't do with all the files still unsaved).
My System SpecsSystem Spec
.


01 Jun 2010   #4
Bill2

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

Is this a usb drive? Go to Device Manager. Do you see an Unknown Disk there or an error icon for a disk?
My System SpecsSystem Spec
01 Jun 2010   #5
ryo

 
 

My System SpecsSystem Spec
01 Jun 2010   #6
Hedge

Windows 7 RC1
 
 

It shows up as Seagate FreeAgent Go (see screenshot).
I can't assign a drive-letter (see the other screenshot).


Attached Thumbnails
Doesn't show external drive anymore but visible in the disk management-proof.png  
Attached Images
Doesn't show external drive anymore but visible in the disk management-free-agent.png 
My System SpecsSystem Spec
01 Jun 2010   #7
Bill2

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

You can try uninstalling the drive in Device manager (right click, uninstall). Then click on the "scan for hardware changes" button and let the drive reinstall. If this drive with its own driver software, you can try reinstalling the driver.
My System SpecsSystem Spec
01 Jun 2010   #8
Hedge

Windows 7 RC1
 
 

OK I did that but nothing changed :/
My System SpecsSystem Spec
01 Jun 2010   #9
ryo

 
 

did you already try the other port of usb??
and due your information, you're already try to put into windows xp, but unknown partition.
it's sounds like the hdd is corrupted. if the files important,that's you got the backup?
My System SpecsSystem Spec
01 Jun 2010   #10
Bill2

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

Unplug this drive. Shutdown the computer, physically disconnect from the power outlet. Wait for 5 minutes, plugin your drive, reconnect power, reboot.

Also, can you browse the drive contents in windows explorer?

BTW, are you still using RC?
My System SpecsSystem Spec
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 Doesn't show external drive anymore but visible in the disk management




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