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Internal Hard Drive incorrect space detection?

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#1 12padams


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Posted 30 January 2014 - 03:27 PM

I bought a 3TB portable hard drive 6 months ago and since windows 7 refused to format it as anything more than 700 gig I used Ubuntu to format it in NTFS as 2.72 terabytes. Windows now said it had 2.72 terabytes of free space but then one day I passed around 1 Terabyte of storage while video editing and noticed my files on the drive were getting corrupt.


Researched online and found out that my bios needed an update to be able to detect drives over 2TB since the bios version was from 2010 (when the computer was bought. I did a scan disk within windows of the drive before flashing the bios and it said I had used 2.6 terabytes of the drive even though it was only storing 1tb. I'm guessing that was the cut off point and if you put more data on it than that it starts to overwrite previous data.


Yesterday I had the computer taken to dee why computer exchange for a service and for them to flash the bios with the 2013 bios update. The guy at the shop said I shouldn't need to reformat the drive or anything, it should automatically be detected. I took the computer home and checked the drive but it still said I only had 100 gig of space left out of 2.72 terabytes even though it only had a terabyte of data on it. I then did a scan disc overnight (took about 6 hours) and now its still the same story except apparently I only have 10 gig free after the Scan disk rather than 100 gig. 


Is this normal? Do I need to wipe this drive and reformat it? What's the best way to solve this problem and give me the full 2.72 terabytes of space without any automatically overwriting data issues?

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#2 JohnC_21


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Posted 30 January 2014 - 03:58 PM

Partition the drive as a GPT disk.




GUID Partition Tables (GPT) can define drives larger than 2.2TB. You can use GPT today on any Windows 7 and Vista system as a non-booting data drive. Windows can only boot a GPT partition on a new type of BIOS called UEFI.



You can convert a MBR disk to GPT using Partition Wizard but I would back up any data on the drive.




Or you can do it fresh with a GParted Live CD.



Edited by JohnC_21, 30 January 2014 - 04:04 PM.

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