Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: WD GPT 4TB internal HDD turns into RAW after 2.27 TB storage

12 Sep 2016   #11

Windows 7 x64

For the 4TB drive, maybe try to separate the drive to 2 partition.
Partition 1 to up to 2TB
Partition 2 to use as logical partition.

Not sure if it works or not.


My System SpecsSystem Spec
12 Sep 2016   #12

Windows 7 HP 64

If I remember well, 5 years old MB where legacy with a UEFI support for drives. They used to call hybrid Bios.
Try to enable UEFI drive support on BIOS and boot. If it boots, go to disk manager and extend your partition to the end. This way you don't need to reinstall win 7.
My System SpecsSystem Spec
12 Sep 2016   #13
help m

Windows 7 Ultimate x64

thanks guys, your help is really appreciated
@megahertz078 @jumanji
i will try to enable the UEFI (just after i finish writing zeros to the HDD, it takes ages :))

what i did not mention earlier is that i actually dis-attached the HDD that contained the OS & all the other HDDs (by the way one of them was 3 TB & it was working) & made a clean install of win7 on another HDD.
Then attached the new OS & the 4TB storage only to MoBo (performed almost all important updates & currently working on optional updates)

i will test the above & come back to you

i have the BIOS update downloaded but i am keeping this as last resort since:
1- it was working before
2- i can not revert back to previous BIOS versions if -god forbid- any thing happens
My System SpecsSystem Spec

12 Sep 2016   #14

Windows 7 HP 64

- Normally when you launch the BIOS update from BIOS options it has an option to save the current BIOS.
- This link has the latest BIOS and also the old ones.
- I always install the latest BIOS.
My System SpecsSystem Spec
12 Sep 2016   #15
help m

Windows 7 Ultimate x64

* i enabled UEFI but no dice same issue

* i wrote zeros to partition (approx. 1678 GB) using minitool:
in Win7 CD it shows as full capacity
also BIOS sees it as 4TB
& within OS it shows 1678 GB (& the rest of the space that should show as un-allocated in disk management is not even there!) & i am unable to restore the 4 TB again

* i am almost sure it is an issue with GPT Tables. i will write zeros to it using 'WD life guard' then if this doesn't fix it i'll have a go on some thing like 'Gparted' any body with experience?
* if any one can read the 'CrystalDiskInfo' file that i have attached it will be extremely helpful in determining the problem
My System SpecsSystem Spec
12 Sep 2016   #16

Win-7-Pro64bit 7-H-Prem-64bit

For what it's worth the green series I looked at on have a lot of bad reviews.
Most people use the blue series that I've read here on SevenForums for data I personally stick with Black series.

Another note flashing your bios most here again would say unless you're seeing serious issues don't :)
I doubt flashing your bios would address this issue.
Seems the best thing to do is get smaller hdd's 2tb
Heck I use 1tb because if they fail larger ones just hurt more
My System SpecsSystem Spec
12 Sep 2016   #17

win 8 32 bit

If its sata3 is it on a sata3 controller not sata2?
My System SpecsSystem Spec
12 Sep 2016   #18

Windows 7 Home Premium 32 bit

It is SATA 6Gb/s and if OP is using SATA connection, he should connect it to one of the two SATA 6 ports in the motherboard. I would think the OP is aware of this.

While trying to resolve this problem the OP is well advised to adhere to SATA connection to the motherboard since traditionally people have reported many problems with eSata and Windows 7.

On the suggestion of ThrashZone, I entirely agree that one will be better off with 2TB drives rather than >2TB drives especially with old motherboards. Two 2TB drives is definitely better than one large 4TB drive ( I have consciously avoided >2TB drives throughout.) Here two birds in the bush is better than one that flies .
My System SpecsSystem Spec
12 Sep 2016   #19

W7 Ultimate SP1, LM19.2 MATE, W10 Home 1703, W10 Pro 1703 VM, #All 64 bit
SATA Controller?

I had an issue (similar to this) when I first tried to install a 3TB HDD.

My problem was caused by the AMD SATA driver (motherboard).

I uninstalled the AMD SATA driver, installed the default W7 driver and the issue went away.
3TB HDD GPT Problems
My System SpecsSystem Spec
13 Sep 2016   #20
help m

Windows 7 Ultimate x64

connected to a 'SATA' port instead of 'e-SATA' same situtation
My System SpecsSystem Spec

 WD GPT 4TB internal HDD turns into RAW after 2.27 TB storage

Thread Tools

Similar help and support threads
Thread Forum
1TB internal HDD question about storage
I'm getting a 256 SSD, I also have a 1TB internal HDD that I plan to DBAN and reformat to use as extra storage as the SSD will be the primary drive with the OS. My question is after I got the 1TB HDD all reformatted and setup and say I'm storing all my family photos on it...if I ever need to use...
Hardware & Devices
turn my old internal HDD to storage disk ?
Hi All I want to turn my old internal HDD to storage disk ? but don't know how to do it , "I have acronis disk director home" Any idea ? Thanks .
Hardware & Devices
computer turns on for a few seconds then turns off
okay so i am able to turn my computer on for a few seconds but then it automatically shuts itself off after a few seconds but the thing is after letting it sit for a couple seconds it says something about how the clocks on my processor have been overclocked too high and asks if it wants me to...
General Discussion
Cartridge-Based Storage Returns with SATA Universal Storage Module

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 05:40.
Twitter Facebook