Question about Western Digital MY BOOK HOME 1TB EXT HD-USB2/FW/E-SATA 3.5IN 1YR FireWire 400 Hard Drive

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Wd 1tb not recognized in explorer but is noted in device manager

I have the same problem. one day i could see the hard drive in explorer and the next day i couldnt see it. i can see it in device manager and it says that everything is working fine. i have tried on both my lap and desk and still the same result. any information would be apprecriated

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  • russell_eckh Jul 26, 2009

    First of all thank you for responding.

    I followed the steps listed above and located the disc.

    In the disc management it says the my WD drive is "unknown" and "not initialised".

    It is allocated disc 1 with the primary and recovery drive being alloocated as disc 0.

    When i attempt to initialise the disc i get a pop up box with "incorrect function".

    Then upon uplugging and resetting the drive and trying to initialise it came up with an error "the disc drive cannot find the sector requested".

    Any help or information would be appreciated.

    Thanks

  • russell_eckh Jul 28, 2009

    Mate thank you so much for your time and effort. Strange, but i think its just a damaged drive. The GetDataBackNTFS couldnt locate the drive either and according to WD the drive should be supplied a serial next to WD in the device listing. So as you said i got a RMA and i am sending it back to WD. Your troubleshooting technique was extremely helpful though and i learned quite a few things. once again, Thank You

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One reason your external drive may not be showing up in explorer could be an issue with assigning the drive letter to the device. This normally happens when the device attempts to assign itself a drive letter that is already taken by another drive or a network mapping. Here is how you can quickly test if this is your issue:
WARNING: Double check the drive you are selecting before changing your drive letter. Accidently changing the drive letter of the wrong drive, such as the one holding you OS can cause your computer to stop booting.
1. With the device connected right click your “My Computer” icon.
2. From the menu select “Manage” which will load the computer management window.
3. Inside the computer management window select “Disk Management” from the left side of the screen under “Storage”.
4. After all your devices are scanned and loaded into the right side of the screen you will see the various drives and partitions connect to your computer.
5. Located the device you are having an issue with in the low section of the right screen panel and check to see if a drive letter is assigned to it. If you are unsure of what it should look like with a drive letter assigned observe your “Disk 0” device which normally is connected to the “C:” Drive letter.
6. Assuming there is no drive letter assigned to your problem drive, or the drive letter is already taken you can simply right click on the partition and select “Change Drive Letter and Paths”. The partition will be the part which lists the file system type and the size.
7. Once in the “Change Drive Letter and Paths” window click the “Add” button and then select a drive letter that is not in use and click “OK”.
8. After you have clicked OK/YES to all the dialog boxes your drive’s partition should now have a drive letter that you can access via explorer.

Posted on Jul 24, 2009

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I am sorry to be the one to tell you this, but based on what you are saying your drive has either been corrupted or has failed. I would first try to recover any data you may have that is worth saving. I recommend GetDataBack which can be found at http://www.runtime.org/data-recovery-software.htm assuming you are working with NTFS GetDataBackNTFS is your best bet. This application will see your device as long as it is shown in device manager then attempt to scan every sector for data. Honestly, recovering data at this point is mostly a luck game. There are companies such as OnTrack that will recover data for you with near 100% success rate for a price.But, if the data is recoverable by software means odds are GetDataBack will save the day.

Ok... Now that you have your data recovered and or have decided it is worth losing you will need to confirm the status of the drive. This is simply done by downloading the drive diagnostic tools from Western Digital's site in the support section. From here you will find out if it is a hardware failure or a data corruption issue. If you run the diagnostics and the drive fails the test you will need to contact WD and attempt to RMA the drive. They are normally very good about this and it is a painless process that will net you a nice new working drive.

If the diagnostics software says your device passes both the short and long tests you have a data corruption. This can be caused by either a drive that will soon fail, a virus or some random fluke event that happened while it is writing data. You could attempt to run the disk check utility in you OS, but it VERY rarely fixes the problem. Instead I would say first go back to the Disk Manager I had you in before and delete all the partitions on your WD 1TB drive.
****WARNING****
Tripple check that you are deleting the correct partition or you WILL lose important data. Also, be sure you have recovered the data or called it a loss at this point. After this step it will be pretty much gone for good.
****WARNING****

Once you have deleted all the partitions you should eject the device and power it down just to be extra safe. Reconnect your device and then in the Disk Manager attempt to create a new partition on the drive and be sure to NOT SELECT QUICK FORMAT. Assuming the drive is not too mangled this should finish and a drive letter will be assigned to your drive. Test your drive and everything should be working fine.
If the Disk Manager gives you errors deleting/creating or formatting the drive then you must perform a low level format. This is a fairly simple process and under the support section of the WD site you will find directions on how to perform one using their utility. A low level format simply writes a 0 to every writable part of a hard drive and is more or less the most powerful reset a user can preform to repair a drive at home with corruption issues. Please note that that a low level format will take multiple hours to finish based on how large the drive is. Also, MAKE SURE YOU SELECT THE CORRECT DRIVE! If you low level format the wrong drive your data will be lost forever.

I hope this solves your problem and feel free to update this post with your status and/or success.

Posted on Jul 26, 2009

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