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External drive recognition problem
Showing all messages in thread #1208222840 Windows XP Annoyances Discussion Forum
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External drive recognition problem
Monday, April 14, 2008 at 6:27 pm Posted by stan
(17 messages posted)
I have a WD external hard drive with a USB connection. I stored pictures and music
that I recovered from a bad hard drive and also backup my current hard drive to it
using Sync Back. My computer has always recognized the drive as an external drive
like a SD card or USB flash thumb drive. Last week when I was downloading some pictures
from an email, I decided to download to the external drive, which did not work. My
computer now only recognizes the hard drive as a local disk and tells me that the
drive isn’t formatted when I try to access it, and would I like to format it. I have
not reformatted it, because I don’t want to lose my files. The files are still on
the disk, I checked using a recovery program. What do I need to do to get the disk
back to the previous status as an external drive and not a local one?
Thank you for your assistance
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re: External drive recognition problem
Monday, April 14, 2008 at 7:59 pm Posted by Steve
(19004 messages posted)
Recover the files with your recovery software to a working Hard Drive, then see if
formating the drive fixes it.
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re: External drive recognition problem
Monday, April 14, 2008 at 8:03 pm Posted by Ari
(1208 messages posted)
USB drives are SUPPOSED to be recognized as "Local Disks" in "My Computer". The
alternative to "Local Disk" is "Network Drive".
So getting the hard drive "back to external drive" is irrelevant. What you need
to do is fix the damage that was apparently done to the drive's partition table,
which is causing the PC to not recognize that the drive is formatted.
If you can use recovery software to copy your data (or most of it) off the drive
onto another one, that's what I'd do FIRST. In case the drive is failing, you want
to get as much data off of it as you can, before it gets worse, and possibly fails
completely.
If you're able to get all your valuable data copied off of it using data recovery
software, then you can try to reformat the drive and, if that goes well, perhaps
put it back into service. If you are NOT able to get your data copied off of it,
I'd first try spinrite, from www.spinrite.com. It will likely take many hours to
run, but it's VERY good in this situation. It will (hopefully) restore your drive
back to normal...but, in case it doesn't, or in case your drive dies during the process,
it will be good if you've first rescued as much data as possible from it.
If you run Spinrite and that doesn't help, then you'll want to try software that
repairs the partition table, like this: http://www.cgsecurity.org/wiki/TestDisk
On Monday, April 14, 2008 at 6:27 pm, stan wrote:
>I have a WD external hard drive with a USB connection. I stored pictures and music
>that I recovered from a bad hard drive and also backup my current hard drive to
it
>using Sync Back. My computer has always recognized the drive as an external drive
>like a SD card or USB flash thumb drive. Last week when I was downloading some pictures
>from an email, I decided to download to the external drive, which did not work.
My
>computer now only recognizes the hard drive as a local disk and tells me that the
>drive isn’t formatted when I try to access it, and would I like to format it. I
have
>not reformatted it, because I don’t want to lose my files. The files are still on
>the disk, I checked using a recovery program. What do I need to do to get the disk
>back to the previous status as an external drive and not a local one?
>
>Thank you for your assistance
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re: External drive recognition problem
Tuesday, April 15, 2008 at 11:52 am Posted by C K
(5976 messages posted)
Spinrite won't run on a USB drive. It will have to be taken out of the enclosure
and mounted into a desktop system for Spinrite to work at low level. This is the
best way to recover and work with a drive anyway. Most likely however, the damage
to the drive isn't something Spinrite is designed to fix/recover anyway if it's just
corruption/FS damage. IME, the enclosure interface has either failed or scrambled
the drive (as a lot of chipsets in these units are known to do), if the drive is
physically OK, or the drive was powered down/disconnected before it was finished
writing to disk..
It's the biggest reason we don't ever count on an external USB/Firewire drive for
reliable storage. Either way, I have learned that it is best to work with recovery
efforts and repair while there is no operating system loaded and running. Windows
utilities can work well in some instances, but you can also do more damage/corruption
in other instances if the encloser interface is defective..
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re: External drive recognition problem
Tuesday, April 15, 2008 at 12:21 pm Posted by Ari
(1208 messages posted)
I use Sprinrite on USB drives all the time. It's slower, of course, but it works.
While it's very possible that the sort of damage is something Spinrite can't fix,
it's also possible that it's something it CAN fix; only way to find out is to try.
Otherwise, I totally agree.
On Tuesday, April 15, 2008 at 11:52 am, C K wrote:
>Spinrite won't run on a USB drive. It will have to be taken out of the enclosure
>and mounted into a desktop system for Spinrite to work at low level. This is the
>best way to recover and work with a drive anyway. Most likely however, the damage
>to the drive isn't something Spinrite is designed to fix/recover anyway if it's
just
>corruption/FS damage. IME, the enclosure interface has either failed or scrambled
>the drive (as a lot of chipsets in these units are known to do), if the drive is
>physically OK, or the drive was powered down/disconnected before it was finished
>writing to disk..
>
>It's the biggest reason we don't ever count on an external USB/Firewire drive for
>reliable storage. Either way, I have learned that it is best to work with recovery
>efforts and repair while there is no operating system loaded and running. Windows
>utilities can work well in some instances, but you can also do more damage/corruption
>in other instances if the encloser interface is defective..
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re: External drive recognition problem
Tuesday, April 15, 2008 at 12:31 pm Posted by C K
(5976 messages posted)
Depends on the BIOS and the motherboard. Won't run on any of mine unless I load
additional drivers (older MBs), which isn't a good idea when working at the hardware
level if you really want to protect your data. Spinrite only tries to recover data
and move it to a different area when the media is failing. Has no other recovery
option, so the only other things it is good for are checking readability and refreshing
disk surfaces (which can corrupt data on an unstable system I have found).
Only an average of about 1 out of 200 drives I work on actually needs or has a problem
that Spinrite can fix. The electronics seem to fail more than the media, unless
the heads are crashing, but then the heads are usually being damaged too. Otherwise,
I use professional software to recover data or fix corrupted partition tables. At
least this has been my experience on newer drives in the past 2-3 years but then
that's when I started using all Seagates, as I had some terrible reliability issues
on other brands when running under higher heat conditions.
On Tuesday, April 15, 2008 at 12:21 pm, Ari wrote:
>I use Sprinrite on USB drives all the time. It's slower, of course, but it works.
> While it's very possible that the sort of damage is something Spinrite can't fix,
>it's also possible that it's something it CAN fix; only way to find out is to try.
>
>Otherwise, I totally agree.
>
>
>
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re: External drive recognition problem
Saturday, April 26, 2008 at 8:47 am Posted by Brian Levy
(1 messages posted)
I've also got a problem with a USB harddrive. Wehn plugged in, the icon will not
show in My Computers but, I can use the Nero Backup application to write to it and
it shows up in the hardware manager and when I click the USB stop it also shows up.
I've looked at the threads and thought about the High Filters solution proposed
but when I plug in my MP3/flash drive, it comes up on the My Computer directory,
the Hardware Manager adn USB stop all as E: drive and the HD then moves from E: to
F: but still not seen as an icon. When I go through the Hardware Manager properies
and pull the drive up it is showing about 1/4th of teh drive used which I calculate
it should based on the backups so it seems to be working that way. On my other XP
laptop when I plugged it in it showed up as expected to it seems to be an OS issue.
Any ideas?
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re: External drive recognition problem
Saturday, April 26, 2008 at 9:14 am Posted by Ari
(1208 messages posted)
You could try going into Control Panel, administrative tools, Computer management,
Storage, Disk Management (Local), and setting the drive letter of the USB drive to
something much further down in the alphabet, like M or N, then reboot, and see if
it shows up as an icon then.
On Saturday, April 26, 2008 at 8:47 am, Brian Levy wrote:
>I've also got a problem with a USB harddrive. Wehn plugged in, the icon will not
>show in My Computers but, I can use the Nero Backup application to write to it and
>it shows up in the hardware manager and when I click the USB stop it also shows
up.
> I've looked at the threads and thought about the High Filters solution proposed
>but when I plug in my MP3/flash drive, it comes up on the My Computer directory,
>the Hardware Manager adn USB stop all as E: drive and the HD then moves from E:
to
>F: but still not seen as an icon. When I go through the Hardware Manager properies
>and pull the drive up it is showing about 1/4th of teh drive used which I calculate
>it should based on the backups so it seems to be working that way. On my other
XP
>laptop when I plugged it in it showed up as expected to it seems to be an OS issue.
> Any ideas?
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