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Old 05-16-2017, 03:22 PM   #1
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Default Windows 7 can't recognize a 3TB hdd

Hi,

I'm running Windows 7 Ultimate 64 bit on a Dell M4500 lappy(quad core). I have an external hdd housing that I connect to via USB and all this while, was able to access 3TB hdds that were formatted on other machines without any issue. I'm trying to format a new 3TB hdd for the first time on my lappy but when it was connected, only 700+GB was shown. I already set it to GPT format but still same result. I'm planning to use this hdd for backup storage only. How do I solve this?
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Old 05-17-2017, 12:25 AM   #2
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Default Re: Windows 7 can't recognize a 3TB hdd

What does the manufacturer of the drive say about it?
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Old 05-17-2017, 01:35 AM   #3
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Default Re: Windows 7 can't recognize a 3TB hdd

Quote:
Originally Posted by Technician View Post
What does the manufacturer of the drive say about it?
Didn't think about asking. I assume they're not interested in helping small cases.
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Old 05-17-2017, 02:17 AM   #4
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Default Re: Windows 7 can't recognize a 3TB hdd

I'd start there. If they won't or can't help, get a different drive.
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Old 06-06-2017, 03:36 PM   #5
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Default Re: Windows 7 can't recognize a 3TB hdd

Try formatting the 3TB drive using a bootable live cd/usb like Gparted.
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Old 06-06-2017, 07:36 PM   #6
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Default Re: Windows 7 can't recognize a 3TB hdd

Does it work as an internal drive?
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Old 06-06-2017, 07:45 PM   #7
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Default Re: Windows 7 can't recognize a 3TB hdd

What does Windows Disk Management Show?

Start > Right Click Computer > Manage
Left hand panel > Disk Management (expand) > Click Disk Management

It should here show the full size, but perhaps in the bottom section of the right side pane, you might see the entire disk (should show disks starting at 0 (your root drive)) and it might have a large part of it blacked out. If that's so, it just hasn't been allocated.

If none of this is true, can you post a screen grab of the Disk Management MMC?
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