GUID Partition Table (GPT) is a format for partition tables that was designed within the UEFI specification by Intel. It was designed as the successor to the Master Boot Record partition tables.

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linux splits one 3 TB external USB HDD into 2 physical drives?

I recently bought a 3 TB harddisk which I inserted into a external USB drive enclosure and connected it to linux debian. Unfortunately it now shows up 2 separate physical drives: one with 2.19TB and ...
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Can't install Windows 7 with UEFI off on GPT drive

I need to have a dual boot with Ubuntu and Windows 7 on my notebook with UEFI. I had to turn UEFI off to install and boot Ubuntu. Now I'm trying to install Windows 7, but it says it can't be ...
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30 views

Why can't I install Windows 8 on an UEFI machine from an MBR based USB disk?

Just tried to install Windows 8.1 on an UEFI machine/GPT disk. I used a 2 TB MBR-based USB drive to contain the installer (FAT32 partition with Windows 8.1 install files). I got as far as selecting a ...
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How can I tell if a Windows 8.1 machine has 'full' UEFI?

I've seen a Windows 8.1 machine that has a MBR format drive and a 'Legacy' BIOS, and it has fancy graphics that look like UEFI. If I have a GPT format drive is it still possible to have the old style ...
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Problems restoring grub

I have used fsarchiver to move the content of my old hard drive on a new bigger SSD. Basically, one partition with Ubuntu 12.04. Everything went fine. But now I can not boot. I used GPT and I also ...
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Windows backup “Volumes larger than” error

A week ago I started getting the Windows Backup error 0x807800B4, stating "Volumes larger than 2088958 megabytes cannot be protected." I'm not sure what this is referring to. My system volume is a ...
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1answer
28 views

Can't install Win 8.1 to my new Dell I5 computer

i just got a new dell I5 computer with on Operating system inside, i tried to install win 8.1 as the manual said but when i got to the Hard drive i got the message "windows cannot be installed on this ...
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35 views

Trying to restore cloned 1TB HDD to 3TD HDD, no other solutions have worked

So one day my 1TB started to fail, losing many sectors every boot. So I cloned the 1TB hard drive to a 1TB external drive. First problem? The target drive is too small. Fixed that by telling it to ...
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2answers
73 views

How to partition hard drive from MBR to GPT for Windows 8.1 UEFI install

I just bought a new HP notebook (ProBook 450 G0) and it came preinstalled with Suse 11 Enterprise. Now this is the first time I've owned a system with an (U)EFI and I don't know how things work on ...
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1answer
2k views

Installing Windows Server 2012 with a 4TB Hard Drive giving me GTP Error + deceted as 2TB

I'm trying to install Windows Server 2012 for a new NAS/Backup build. The primary error is Windows only detecting 2.2TB at install out of 4TB. I have plugged the HDD into another computer and ...
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Failure to create hibernation partition on GPT SSD boot drive

I've searched a number of forums and am surprised no one seems to have had the same problem as me. I have only one SSD (Samsung EVO) which is also my boot drive (UEFI, z97 board) for my desktop ...
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1answer
31 views

These partitions are properly aligned?

Scenario: BIOS computer (Not EFI) HDD with GPT partition table I'm trying to follow these instrutions: https://wiki.archlinux.org/index.php/GRUB#GUID_Partition_Table_.28GPT.29_specific_instructions ...
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5answers
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Is there any way to boot Windows 7/8 using BIOS on GPT?

I'd like to know if there's a method to get Windows 7 or Windows 8 Developer Preview to install to a GPT disk on my traditional IBM PC BIOS setup. Windows 7, of course, rejects my GPT partition, ...
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1answer
2k views

Windows 8 Pro 64 bit GPT Protective Partition after restart

Note: I thought I had one problem regarding this topic, but that has since evolved. Below is the pared down version. After some problems, restarts, and a complete reinstall of Windows 8, my WD 3TB ...
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1answer
26 views

My disk at half size after formatting

I'm a long time linux user, I'm also a Windows user, after formatting my brand new USB dongle I get ~30Gb from the partition table available to create a new partition where the nominal capacity of the ...
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2answers
55 views

Is it possible to recover data after disk' gpt to mbr conversion?

I tried to install windows that requires mbr system to a gpt system. I converted gpt to mbr using diskpart utility. After it all my logical disks disappeared and only one (with total amount of space) ...
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4answers
24k views

Clean install of Windows 7 Pro 64-bit on a UEFI with GPT laptop?

I’m currently pulling out hairs about a problem with my wife’s new Samsung Book 9 laptop. it comes preinstalled with Windows 8. She wants Windows 7 Pro. I’ve board a Windows 7 Pro 64-bit for her and ...
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0answers
22 views

What does this libparted warning message mean?

I have a FAT partition on my disk, and I want to shrink its size. But when I do, I got the following warning. File system doesn't have expected sizes for Windows to like it. Cluster size is 8k ...
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1answer
26 views

new windows 8.1 alongside with linux

I have pretty serious problem while installing any linux alongside windows 8.1. While trying to install, linux showing that my disk is empty, despite that i just installed windows a moment ago. Same ...
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3answers
3k views

Accessing 3TB Seagate Barracuda XT on different computer?

I have a 3000 GB Seagate Barracuda XT sata drive. It originally came in an external enclosure with a removable USB 3.0 interface as part of the Seagate GoFlex series of drives. When using this ...
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1answer
710 views

creating UEFI USB Boot stick using rufus option gives errors

I am trying to install windows 7 from a USB UEFI stick that I tried to create in vain. I read other posts on creating UEFI USB Boot sticks and found Rufus the most convenient option . However , Rufus ...
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How to create hybrid MBR/GPT partition on USB drive?

Can you please tell me how to create a hybrid MBR/GPT partition on the USB drive? I need the MBR for the boot as my BIOS doesn't boot GPT partitions.
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windows cannot be installed on this disk. The selected disk is of the GPT partition style. Windows 8.1

I have a ASUS R500A notebook.Original OS is Windows 7 64bit.Few days ago I tried to Install Windows 8.1 64 bit version.But it failed & error message is, windows cannot be installed on this ...
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3answers
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Tools to convert GPT to MBR without access to an OS

I wiped my Windows 8 thinking I could install Win7 x86 but I can't because the disk is GPT. I need to convert to MBR. Is there a tool to do that? Maybe I wrong: but it seems like GParted can only do ...
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1answer
562 views

Is the EFI partition and GPT necessary with less than 2 TiB?

I have a 1 TB external USB hard drive that is GUID partitioned with a 100MB FAT32 EFI partition. The thing is that its a 1 terabyte drive. From what I'm aware, the limit is at 2 tebibytes (TiB). ...
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What are the differences between MBR vs GPT vs any other partition scheme?

Can anyone tell me what the main differences between i.e. MBR vs GPT or any other partition scheme are? Why would one choose one over the other? I am not an expert but from new release of Mac OS X ...
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1answer
54 views

What are those empty partitions on my UEFI/GPT partitioned disk for?

I'd like to know what's with all those unnamed partitions. I've always thought they are what they say they are (recoveries and what not), why are there so many of them? And why do they all say 100% ...
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1answer
97 views

Cloning Windows 7 installation from MBR to GPT drive and make it bootable

I've seen threads on similar topics - such as this one - but the answers never seem to solve how to make it bootable. I have Win 7 64-bit on a PC installed on a 2tb MBR volume. The motherboard is ...
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2answers
91 views

Why can't CDs/DVDs be partitioned?

Nearly everywhere it's written that it's not possible.. But why? Why can't I dump a GPT/MBR partition table in the first sector? Basically dump a disk layout with sector size 2048... Now I'm sure ...
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0answers
91 views

dual boot preinstalled windows 8 laptop with windows 7

I am having a hard disk in gpt partition style and Windows 8 is pre-installed in uefi mode. While trying to dual boot using usb bootable disk(using rufus,gpt partition style,fat32),it displays ...
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109 views

Recreate MacBook Pro's overwritten GPT partition table

Already, neither Testdisk not GParted's rescue option have been able to recover the original partitions, so I think I have to recreate them manually. I'm on a late 2011 MacBook Pro with the stock ...
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64 views

Booting a GPT USB key on older BIOS laptop

I have an old HP EliteBook 8530p, which does not support booting from GPT USB (GPT HDDs are fine though). Lately I had the wish to have a fast-to-start OS for browsing, smaller web tasks, etc., so I ...
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1answer
192 views

cant install windows 7 or 8.1 . The selected disk is of the GPT partition style

I can't install Windows 7 or Windows 8.1 so that I won't lose my data on 2nd disk. Any way to back up the data? or install Windows without formating 2nd disk?
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windows drive is shown as free space whie installing ubuntu

My problem is I have this Lenovo G580 with default OS as Ubuntu. I formatted this recently to freshly install Windows 8 and Ubuntu. Windows 8 is installed and when I run Ubuntu live usb, at the ...
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1answer
1k views

Windows 8.1 installation from USB after deleting Windows Boot Manager in BIOS/UEFI

I removed Windows Boot Manager option from BIOS (UEFI) with EasyUEFI, after reboot I got an error message about broken BCD, need to be recovered, I tried to reinstall Windows 8.1.1 Pro X64 from USB ...
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4answers
2k views

EFI GPT Windows 7 boot-loader/manager issue and grub

My computer(asus N76VM 64 bit) with windows 7 (64 bit home professional) pre-installed got in a bad state while partitioning from a later installed Ubuntu environment. This had lead me to run testdisk ...
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1answer
105 views

Disk partition order concern for dual booting Windows 8.1 and Windows 7

When dual booting Windows 7 and Windows 8.1 on a UEFI system with GPT Disk, is the order of the partition, on which I install the OSes, of any concern? Previously, after the EFI Sytem Partition and ...
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1answer
57 views

Default Mac 500GB partitions

I am trying repair hosed partitions on a Macbook. It has a 500 GB drive and as far as I know, it was a standard install with no Bootcamp. I ran testdisk and it found: EFI System 40 409639 Mac HFS ...
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123 views

How can I add 4TB SATA disk to motherboard without formatting ?

I had a 4TB seagate USB3.0 hard drive with data. I took the case out and got the internal SATA drive from that case. Then I joined it to my Intel D975XBX2 motherboard with SATA cables, but the ...
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2answers
1k views

Update MAC EFI to EFI 2.x

I've been doing a lot of research about installing Windows on Mac - without having a MBR and such. I'm trying to create a pure GPT/EFI system without MBR. Currently, Mac Bootcamp creates a hybrid ...
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2answers
69 views

How to convert MBR with extended partition to GPT?

I have a disk with extended partition, and are all used. Now, I want to convert this disk to GPT. But GPT does not support extended partition. I wonder if it would be possible? Or maybe the extended ...
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1answer
103 views

What are GPT Protective volumes on Windows 8 and can they be recovered?

I have seen a few GPT Protective volumes now with Windows 8.x. These are default configurations where the users are very "un-savvy" and so they did not enable anything as far as additional security ...
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0answers
37 views

Data recovery on bitlocker drives? [duplicate]

I have a Windows 8 drive that had the GPT Protective partition converted to MBR in an attempt to read it on another system. The user then did not see the drive yet still and converted it back to GPT. ...
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0answers
108 views

Restore automatic bootup of Windows 8 in UEFI

My Acer AMD laptop came bundled with Windows 8.0 in UEFI. The state it's in now is that every boot stops at a prompt, and I have to hit ENTER at this screen to continue: How can I make this ...
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1answer
118 views

UEFI with MBR partition table?

i want to convert current GPT partition table to MBR. But my laptop has UEFI, so is it safe UEFI with MBR partition table? or maybe i am misunderstanding about UEFI/GPT things?
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2answers
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what is difference between gpt partition and mbr partition and where structure differs?

Where GPT table using and MBR partition table using. Windows 8 installing and booting in UEFI mode so it is supporting GPT partition style so we can create 128 primary partitions using windows8? can ...
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2answers
2k views

Partitions on GPT disk are not in the recommended order?

I want to install a clean RTM Windows 8.0 on a laptop that came with OEM Windows 8.0 pre-installed. I have a working ISO image on DVD. The problem is that the setup program complains about ...
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1answer
2k views

grub2-bios-setup: warning: this GPT partition label contains no BIOS Boot Partition; embedding won't be possible

Grub2 won't install on a hdd with GPT partition label (without --force), complaining about a missing BIOS boot partion - even though there is one. The first partition (1 MB) is supposed to be used as ...
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2answers
102 views

Installing a 3TB drives on Debian

I am using an internal hard drive USB adapter to mount backup drives. The adapter was working well with my previous 1GB backup drives. We just got two new 3TB hard drives. We connected it with the ...
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1answer
577 views

Linux tools that can partition GPT with proper alignment

Proper partition alignment ensures ideal performance during data access. Incorrect partition alignment will cause reduced performance, especially with regard to SSDs (with an internal page size of ...