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Windows 7: Unable to initialize external HDD in Disk Management due to I/O error

25 Dec 2011   #1
tommythecat

Windows 7 Ultimate x64
 
 
Unable to initialize external HDD in Disk Management due to I/O error

Hi All,

I've recently ran into an almost identical problem that was described (but not resolved) in this thread.

In my case, the drive worked perfectly with my system and only recently stopped appearing in My Computer. Also, my drive is still visible and accessible on Windows XP but is not visible on my Windows 7.

I'd be grateful for any useful advice how to restore the functionlity of this drive on Windows 7.

Please let me know if you require any additional information to help resolve this issue.

Thank you!


My System SpecsSystem Spec
25 Dec 2011   #2
joodoo

Windows 7 Pro x86; Pro x64; Home Prem x64; and others....
 
 

Hello, tommythecat.
Is the external drive used much? Is it aging? Damaged (from moisture, shock [dropping] or misuse)?
If you can, back-up all the data to another HDD.
Connect the problematic HDD to the troublesome PC.
Open an administrative command prompt > type diskpart > type list disk.
Is the drive listed?

Cheers - Happy Holidays.
My System SpecsSystem Spec
25 Dec 2011   #3
rraod

MS Windows 7 Ultimate 64-bit SP1
 
 

It helps if you can mention the make and capacity of the external HDD.

Western Digital models usually require WD SES driver on windows 7 and sometimes gives problems if the driver is not present.

Depending on your HDD model and make, check on the manufacturer's website whether the external HDD requires any OEM drivers. If so search, download and install the drivers and again try to access the drive.
My System SpecsSystem Spec
28 Dec 2011   #4
tommythecat

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by joodoo View Post
Hello, tommythecat.
Is the external drive used much? Is it aging? Damaged (from moisture, shock [dropping] or misuse)?
No, it's not used much and it isn't aging. Also, it certainly wasn't damaged. As I wrote, if I connect it to a different PC, it works fine.

Quote:
If you can, back-up all the data to another HDD.
Connect the problematic HDD to the troublesome PC.
Open an administrative command prompt > type diskpart > type list disk.
Is the drive listed?
I just did that and the drive is listed there, although I don't see the drive in "My Computer".

Quote:
Cheers - Happy Holidays.
Thanks and happy holidays
My System SpecsSystem Spec
28 Dec 2011   #5
tommythecat

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by rraod View Post
It helps if you can mention the make and capacity of the external HDD.
Seagate FreeAgent Go 500GB

Quote:
Western Digital models usually require WD SES driver on windows 7 and sometimes gives problems if the driver is not present.

Depending on your HDD model and make, check on the manufacturer's website whether the external HDD requires any OEM drivers. If so search, download and install the drivers and again try to access the drive.
I already did that, but:

1. This drive worked fine for a year now, so why suddenly install the drivers?
2. Installing the drivers still didn't help

Thank you
My System SpecsSystem Spec
28 Dec 2011   #6
Hipster Doofus

Windows 7 Pro x64 -- PCLinuxOS KDE4 FullMonty 2011
 
 

Is there any data on it that needs recovering?

If not use the clean all option. Disk - Clean and Clean All with Diskpart Command
My System SpecsSystem Spec
28 Dec 2011   #7
tommythecat

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Hipster Doofus View Post
Is there any data on it that needs recovering?

If not use the clean all option. Disk - Clean and Clean All with Diskpart Command
Unfortunately, yes -- there's data on the drive that needs recovering. Any recommended software for that?
My System SpecsSystem Spec
28 Dec 2011   #8
Hipster Doofus

Windows 7 Pro x64 -- PCLinuxOS KDE4 FullMonty 2011
 
 

Copy the data over to xp. Do the diskpart, see if windows 7 see it then then copy the data back. That's the easiest way.
My System SpecsSystem Spec
28 Dec 2011   #9
joodoo

Windows 7 Pro x86; Pro x64; Home Prem x64; and others....
 
 

Quote   Quote: Originally Posted by tommythecat View Post
Quote   Quote: Originally Posted by joodoo View Post
Open an administrative command prompt > type diskpart > type list disk.
Is the drive listed?
I just did that and the drive is listed there, although I don't see the drive in "My Computer".
What exactly is listed in diskpart for that particular drive?
Offline/online? (see pic)


If it shows in diskpart, try running Windows disk checker (Option 2 with the /F switch) with the intent to find/fix file system errors.
diskpart
list disk
select disk (#) > # = actual value the problematic disk
chkdisk /f

Edit: has the drive been plugged into a different USB port on the Win7 machine?
Open Device Manager (Show hidden devices); is there any of these? or red marks showing?


Attached Images
 
My System SpecsSystem Spec
29 Dec 2011   #10
tommythecat

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by joodoo View Post
Quote   Quote: Originally Posted by tommythecat View Post
Quote   Quote: Originally Posted by joodoo View Post
Open an administrative command prompt > type diskpart > type list disk.
Is the drive listed?
I just did that and the drive is listed there, although I don't see the drive in "My Computer".
What exactly is listed in diskpart for that particular drive?
Offline/online? (see pic)
It's listed as Online

Quote:
If it shows in diskpart, try running Windows disk checker (Option 2 with the /F switch) with the intent to find/fix file system errors.
diskpart
list disk
select disk (#) > # = actual value the problematic disk
chkdisk /f
I tried that and here's what I got:

DISKPART> select disk (3)
The disk you specified is not valid.
There is no disk selected.
DISKPART>

Quote:
Edit: has the drive been plugged into a different USB port on the Win7 machine?
Open Device Manager (Show hidden devices); is there any of these? or red marks showing?
I enabled hidden devices but didn't see any devices with the yellow or red markings
My System SpecsSystem Spec
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 Unable to initialize external HDD in Disk Management due to I/O error




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