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Hard Drive is now recognised as an 'expansion'

This is a discussion on Hard Drive is now recognised as an 'expansion' within the Hard Drive Support forums, part of the Tech Support Forum category. Hi, I bought a Seagate Maxtor 2TB Hard Drive literally a week ago. I paid like 70 for it, and

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Old 03-10-2018, 07:58 AM   #1
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I bought a Seagate Maxtor 2TB Hard Drive literally a week ago. I paid like 70 for it, and was using it on an apple mac.
I plugged it into a Windows computer and nothing showed up. It's now recognised as an 'expansion'. Even when I plug it back into the mac I was using with it, it's recognised as an 'expansion'. And I can't access any of the data on it.

Is there a way to get the files on it back? And to have it working as a normal hard drive again? (Without having to pay hundreds of pounds as the Seagate website suggests)

And if there is no hope for that, then how can I get my money back? (I've thrown away the receipt and packaging). Btw I bought it from Argos.

Thanks in advance
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Old 03-10-2018, 11:34 AM   #2
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If you plugged this drive into a Mac and formatted it for Mac, it would not read on a Windows PC.
Plug it into a Windows PC. Go to Start/Search and type diskmgmt.msc, right click the diskmgmt results and Run As Administrator. In the lower pane of Disk Management, what does it say about your external drive? Is the file system listed as Unallocated Space? Or under the Disk # (ie) Disk1, Disk2 etc, Does it say it is Not Initialized?
You can try and recover your files by using the free TestDisk program. Minitool Data Recovery, I have had the best luck with GetDataBack. You will need another drive of the same size or larger to restore your files to.
Once you are backed up, or if you don't care about the data on the drive, you can Format the drive and be able to use it again.
Please press the Like link to right of any post you found helpful.
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Old 03-11-2018, 03:10 PM   #3
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"Expansion" is the model name of certain Seagate external drives. It could be that the OS is seeing the electronics inside the enclosure but not the actual hard drive.

Can you obtain a SMART report with a tool such as CrystalDiskInfo?
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Old 03-11-2018, 06:25 PM   #4
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Heres the link.


You want CrystalDiskInfo Standard Edition, careful you don't get CrystalMarkInfo, it is different.
Regards, Dave.

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Help us to help you by posting your System Specs
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