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How do I get my external hard drive to show up in disk management

I have a HP 2TB external hard drive that I had hooked up to my DVR to backup my recordings but I no longer want to use it for that. I want to be able to connect it to my computer and use it but it won't let me. I tried to reformat it but it won't show up in disk management so that I can. It does show up in device management though. Please Help.
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  1. Best answer
    Hey there, Hayley.

    This is a pretty common and annoying issue when moving an HDD from a DVR to a computer. The HDD sort of "locks" to the DVR sometimes. Try if the DVR has formatting functions to format it and see if it's visible in Disk Management after that. Another option would be to download the HDD manufacturer's tool/utility and try to low level format it (a.k.a. Write Zeros). You could also try with a 3rd party diagnostics tool if the HDD manufacturer's doesn't offer that option or can't detect the drive. Note that this would wipe out everything on the drive and the data will be irretrievable.

    Hope that helps. Please let me know how everything goes.
    Boogieman_WD
  2. I do not have the DVR anymore and I am not worried about keeping what is on the drive really. I it would be awesome to, I had just had it set in my mind that it wasn't possible. The hard drive is an HP, so would I just google HP HDD manufacturer's tool/utility? I am not super computer savvy but I can normally do as I am told. And if that option doesn't work do you have a 3rd party diagnostics tool that you recommend? Thanks for all your help. You are the only person that has given me any useful advise so far.


    Boogieman_WD said:
    Hey there, Hayley.

    This is a pretty common and annoying issue when moving an HDD from a DVR to a computer. The HDD sort of "locks" to the DVR sometimes. Try if the DVR has formatting functions to format it and see if it's visible in Disk Management after that. Another option would be to download the HDD manufacturer's tool/utility and try to low level format it (a.k.a. Write Zeros). You could also try with a 3rd party diagnostics tool if the HDD manufacturer's doesn't offer that option or can't detect the drive. Note that this would wipe out everything on the drive and the data will be irretrievable.

    Hope that helps. Please let me know how everything goes.
    Boogieman_WD
  3. Well if you can't find their tool, you could try with a different one. Here's a guide on how to low level format a drive by using DLG (Data Lifeguard Diagnostics): How to low level format or write zeros (full erase) to a hard drive or Solid State drive. In case DLG is unable to detect the drive, here's another link with a bunch of HDD diagnostics tool options, (but note that I haven't used all of them and unfortunately as an official WD rep, I can't really recommend a specific brand, so you'd have to check them out by yourself :(): http://pcsupport.about.com/od/toolsofthetrade/tp/tophddiag.htm. The link includes both brand related and 3rd party diagnostics tools, so you should find what you're looking for among them.

    Please keep me posted.
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