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Windows 7: Cannot partition unallocated space on 4TB hard drive

10 Jan 2015   #1
tahaminey

Windows 7 Home Premium 64 bit
 
 
Cannot partition unallocated space on 4TB hard drive

I just bought a 4TB hard drive to replace my old one which was damaged. However it only allows me to partition 2TB and leaves the remaining 1.64TB as unallocated. I've tried easeus but it does not allow me to do anything with the unallocated space. I want to create 3 partitions with that unallocated space and use it to store my files.

Any help please as I'm about to pull my hair out. I'm not too good with computers.


My System SpecsSystem Spec
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10 Jan 2015   #2
Lady Fitzgerald

Win 7 Ultimate 64 bit
 
 

Did you format it MBR instead of GPT?
My System SpecsSystem Spec
10 Jan 2015   #3
tahaminey

Windows 7 Home Premium 64 bit
 
 

Sorry double posted and don't know how to delete this post.
My System SpecsSystem Spec
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10 Jan 2015   #4
tahaminey

Windows 7 Home Premium 64 bit
 
 

No, I've never done it before. I tried to follow the tutorial here Convert MBR Disk to GPT Disk. However the example shows Disc 0 which has the System Reserve and C drive and then Disc 1. Whereas my drive only shows Disk 0 which has the System Reserve and C drive and 2 partitions which I can create plus the rest of my 1.64TB unallocated space which I can't seem to touch.
My System SpecsSystem Spec
10 Jan 2015   #5
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Sounds like you are trying to convert a disk that you are booted from. In your case, disc 0. In the tutorial, the PC is booted from disc 0, but disc 1 is the one to be converted.

I don't think Windows is going to let you delete partitions that you are booted from.

You'd need to boot from something else, such as a Windows installation disc, and then delete the partitions on the 4 TB disc. Then initialize and format it as GPT.
My System SpecsSystem Spec
10 Jan 2015   #6
tahaminey

Windows 7 Home Premium 64 bit
 
 

Quote   Quote: Originally Posted by ignatzatsonic View Post
Sounds like you are trying to convert a disk that you are booted from. In your case, disc 0. In the tutorial, the PC is booted from disc 0, but disc 1 is the one to be converted.

I don't think Windows is going to let you delete partitions that you are booted from.

You'd need to boot from something else, such as a Windows installation disc, and then delete the partitions on the 4 TB disc. Then initialize and format it as GPT.
I have no idea how to do this. My computer knowledge is rather limited. I'm one of those people that needs step by step instructions with screenshots so I know what I'm doing.

I read that seagate discwizard can do this. Is it worth giving it s shot? I saw a video on YouTube.
My System SpecsSystem Spec
10 Jan 2015   #7
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

When you bought the drive, it had no partitions.

You had enough knowledge to partition it.

You can't change to GPT without first removing all partitions so that the drive is effectively as it was when you bought it.

Then you'd reformat, but choose GPT, not MBR. You apparently chose MBR at some point when you should have chosen GPT.

Is there anything on this drive now that you care about--that you have to save?

Do you have an ordinary Windows installation disc?

Do you have another PC into which you can temporarily install this drive?

Have you ever burned a DVD?

Does your PC have a DVD drive?

There is some chance your motherboard will balk at a 4 TB drive, but you'd have to go to the motherboard manufacturer's web site to find out. I'd just delete partitions and see if I succeeded with GPT.
My System SpecsSystem Spec
10 Jan 2015   #8
tahaminey

Windows 7 Home Premium 64 bit
 
 

Quote   Quote: Originally Posted by ignatzatsonic View Post
When you bought the drive, it had no partitions.

You had enough knowledge to partition it.

You can't change to GPT without first removing all partitions so that the drive is effectively as it was when you bought it.

Then you'd reformat, but choose GPT, not MBR. You apparently chose MBR at some point when you should have chosen GPT.

Is there anything on this drive now that you care about--that you have to save?

Do you have an ordinary Windows installation disc?

Do you have another PC into which you can temporarily install this drive?

Have you ever burned a DVD?

Does your PC have a DVD drive?

There is some chance your motherboard will balk at a 4 TB drive, but you'd have to go to the motherboard manufacturer's web site to find out. I'd just delete partitions and see if I succeeded with GPT.
Yes, I have the windows installation disc. The hard drive is currently empty and only had windows and the antivirus and Firefox installed do I won't lose anything important. My computer has a DVD drive.

How do I reformat and choose GPT? I don't remember choosing MBR at all. I just let it run automatically whrn
It was installing windows.
My System SpecsSystem Spec
10 Jan 2015   #9
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Quote   Quote: Originally Posted by tahaminey View Post

Yes, I have the windows installation disc. The hard drive is currently empty and only had windows and the antivirus and Firefox installed do I won't lose anything important. My computer has a DVD drive.

How do I reformat and choose GPT? I don't remember choosing MBR at all. I just let it run automatically whrn
It was installing windows.


Refer to that tutorial you earlier mentioned.

Locate the "OPTION TWO" section. You'll need to follow those steps at the command prompt.

To get to a command prompt without booting from your hard drive, you need to boot from your Windows install disc.

Do you know how to do that?

Once booted from the Windows install disc, the first screen should be where you are asked to choose a language. At that point, hit Shift F10 on your keyboard.

That will take you to a command prompt. Then begin with step 3 under OPTION TWO in that tutorial. Those are the commands to delete all partitions and convert to GPT.
My System SpecsSystem Spec
10 Jan 2015   #10
tahaminey

Windows 7 Home Premium 64 bit
 
 

Quote   Quote: Originally Posted by ignatzatsonic View Post

Refer to that tutorial you earlier mentioned.

Locate the "OPTION TWO" section. You'll need to follow those steps at the command prompt.

To get to a command prompt without booting from your hard drive, you need to boot from your Windows install disc.

Do you know how to do that?

Once booted from the Windows install disc, the first screen should be where you are asked to choose a language. At that point, hit Shift F10 on your keyboard.

That will take you to a command prompt. Then begin with step 3 under OPTION TWO in that tutorial. Those are the commands to delete all partitions and convert to GPT.

How do I get to command prompt without booting from hard drive. I'm not sure how to get it to boot from disc.
My System SpecsSystem Spec
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 Cannot partition unallocated space on 4TB hard drive




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