New hard drive is visible, but untouchable

jakobedlam

Reputable
Sep 16, 2014
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I have installed a new 3TB Toshiba hard drive in my homebuilt computer. I'm running Win 8.1.
I made the mistake of putting the drive in an external enclosure to try and clone it before swapping it for an older internal drive. The enclosure seems to have configured the disk into:

2048GB Healthy (GPT Protective Partition) and 746.52GB Unallocated.

I've read extensively on here about enclosures and what they can do, sometimes making GPT impossible. After Macrium Reflect told me it couldn't clone via USB, I installed the hard drive internally. It shows up as described above, but Windows hasn't assigned a drive letter, and there's not a single thing I can do to either partition. The smaller, unallocated partition will let me see properties (the 2TB partition won't), but that's it. Everything else is greyed out.

I can't format, can't delete, can't allocate, can't resize, can't seem to do anything. Is there any solution to this? Or do I need to return the disk?
 
Solution
Hi

Get a free copy of gparted linux boot cd

http://gparted.org/livecd.php

boot up and see if it can remove all partition information or clear the master boot sector.

If original hard drive is MBR (and upto 2TB) and you wish to clone to 3TB drive which has to be GPT partitioned
you are going to have problems unless you have software which is able to do this

You need 64 bit Windows disk (modern version 7 or 8 (not sure about Vista))
modern motherboard with uefi BIOS
and possibly change bios settings

It might be easier to install Windows again from scratch on new hard drive without the old one present.

maybe an expert can suggest software which can do this for you. I have not used a > 2TB hard drive yet

regards
Mike Barnes
Hi

Get a free copy of gparted linux boot cd

http://gparted.org/livecd.php

boot up and see if it can remove all partition information or clear the master boot sector.

If original hard drive is MBR (and upto 2TB) and you wish to clone to 3TB drive which has to be GPT partitioned
you are going to have problems unless you have software which is able to do this

You need 64 bit Windows disk (modern version 7 or 8 (not sure about Vista))
modern motherboard with uefi BIOS
and possibly change bios settings

It might be easier to install Windows again from scratch on new hard drive without the old one present.

maybe an expert can suggest software which can do this for you. I have not used a > 2TB hard drive yet

regards
Mike Barnes
 
Solution