Question about Hitachi HDT725050VLAT80 500 GB EIDE Hard Drive

3 Answers

Problem not resolved new to the site

When i open hardware maagement the disc is show in proeties it says it is working properly but unable to reformat or add any dat my os is vista home premium ,it is only recognized when i us nternally but not externally via usb or firewire,a i need to use this as a media player external i need HELP to get it working ,quadcore chip 8gb ram asus extreme motherboard raptor 74 x2 in riad0 ] 4 50gb hitachi 500gb sata discs only one not working is the 500 ide via usb

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  • dayled Jan 03, 2008

    anyone know why my disc is not recognized os vista home premium i have tried using the disc internaly and is recognized but as i need the ide for my dvd`cd drives i am using it externaly to avail any answers out there

  • dayled Jan 03, 2008

    the hard drive is a ide not a sata widows say my computer does not need the do download this file and will not run it.i can format the disc on my main computer but nothing from pc + lapotop as an external drive have swapped onto 3 other cases and nothing .

  • dayled Jan 04, 2008

    i can see the drive in disc managment and properties say it is working ok just cannot find it on desktop computer ordisc format and partition prog in vista only works internally on ide cables and is formattable and works fine but i need it for external use all other3 external drives are seen and work fine

  • dayled Jan 05, 2008

    tried all no luck when i plug in the comp says usb device not recognized and when i follow up i am told that no driver has been assigned to this device have tried reset drive master /slave . when i use another hd no problem when i use internelly no problem also cannot format to fat32 for some reason
    but that is a minor problem cannot figure out why internally works fine but via usb/firewire external media player/drive case nothing a brand new drive will try anything



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External drive is not recognize by windows vista, please updates the motherboard chips and you can download it here.
after downloading install it to your system.

You must install all necessary driver of your stuff. may be your external drive has a driver on its website for vista.

Posted on Jan 04, 2008

  • Emelio Navaja
    Emelio Navaja Jan 04, 2008

    If the drive still not recognize, go to computer management, then click disk management , you can see all the drive there.


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Vista has a big problem recognizing usb drives - and no one has one right way to fix this yet. The first thing you should try is installing this update from microsoft that combines all USB hotfixes into one download. (it's update 941600). Scroll down to "More Information" and download the version of the fix that applies to your vista installation.

If that still doesn't work, try following the instructions here, and deleting your .inf files.

Posted on Jan 03, 2008

  • Lucus Keppel
    Lucus Keppel Jan 06, 2008

    You may also try clicking "search for drivers myself" (when the Install Hardware) and browse to C:\Windows\System 32. Check the "include subfolders" box - sometimes Vista decides to "forget" where the .inf files are stored.

    I'm also trying to find a solution that worked on my system - one of the Windows Updates causes this problem with Vista not recognizing new USB devices.That update is KB936003 - "cumulative update for USB devices". To uninstall it (and see if it helps your system), go to the control panel, click on "Uninstall a program" and click on "Remove Windows Components" on the left-hand side of the window. Scroll down through the list until you see KB 936003, select it, and hit uninstall. Now unplug your usb-harddrive and plug it back in.


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The only way to use this externally would be to get an ide/sata to usb adapter, like this:

As for using it internally, you would connect it with the same ribbon cable that is connected to your current hard drive. Then the new drive you would have to set to slave, there will be a jumper on the end of the drive where you plug it in. It should tell you where to move the jumper to to set it as slave.

Posted on Jan 03, 2008

  • Peter Burns Jan 04, 2008

    If you get the adapter like I mentioned you will be able to use the drive externally, and that's the only way you'll be able to do it. And the kit works with and ide or sata drive. Since your drive is sata, then there's no problem.


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