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I have a Toshiba 3TB harddrive model HDKPC08. When I formated it using the windows 7 installer I saw a 2tb partition and another partition roughly 700 or 600gb. This appears to be a 3TB HDD. However I could NOT make it one (or two) big partition. The 700gb section I could not format. I got an error code. I installed windows 7 anyways and using disk manager I still can not format that section. What can I do? I tried looking for a firmware update but it doesn't appear Toshiba has any firmware downloads/installers/anything
What bothers me is I can see the unusable section in admin tools but I can't actually access it.
2Windows support for hard disks that are larger than 2 TB – yoonix – 2014-06-20T22:53:33.817
also have a look at http://en.wikipedia.org/wiki/NTFS#Scalability
– Jakke – 2014-06-20T22:54:00.0104Is it MBR or GPT? Some drive manufacturers have a special driver to "split" drives larger than 2TB so that you can recognize the whole disk, but because it uses MBR, you can't have a drive larger than 2TB. You must use GPT – phuclv – 2014-06-21T02:33:03.660
Windows 7 definitely does support GPT; however, the Windows boot disk can be GPT only if the firmware supports EFI/UEFI, and if the installer booted in that mode. Most computers sold since mid-2011 use EFI. If the disk is used as a data disk, it can be GPT even if Windows boots in BIOS mode. – Rod Smith – 2014-06-22T15:37:19.033