ổ cứng chuẩn mbr và gpt là gì? cách kiểm tra ổ cứng chuẩn mbr hay gpt?

Sometimes, after connecting an internal or external hard drive to lớn your system, Windows Disk Management says that it is prepared with a GPT Protective sầu Partition. This will mean that you cannot repartition or reformat the drive sầu. This article will discuss how to overcome this issue.

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What is a GPT disk?

The GUID Partition Table (GPT) was introduced as part of the Extensible Firmware Interface (EFI) initiative. GPT provides a more flexible mechanism for partitioning disks than the older Master Boot Record (MBR) partitioning scheme that has been common lớn PCs.

A partition is a contiguous space of storage on a physical or logical disk that functions as though it were a physically separate disk. Partitions are seen by the system firmware và the installed operating systems. Access khổng lồ a partition is controlled by the system firmware before the system boots the operating system, and then by the operating system after it starts.

The GUID Partition Table (GPT) Scheme was implemented under Microsoft Windows XPhường. x64 edition, Windows Server 2003 (64-bit), Windows Server 2003 SP1 (all versions), Windows Vista, Windows 7+

In a nutshell, GPT Partition was developed khổng lồ get around known, MBR partition kích thước issues; the maximum form size for a MBR partiton is 2 Terabytes (TB). GPT partitions enable this limit to lớn be exceeded.

Note: For more comprehensive sầu information on GPT Protective sầu Partitions, refer to the following Microsoft link:https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/windows-and-gpt-faq

GUID Partition Table (GPT) partitions are also found in Mac OS X versions 10.4.6 và newer. All Intel-based Macs require a GPT partition on a boot volume, whether it be internal or external.

When connecting an internal and/or và external hard drive khổng lồ a Windows XPhường. (or newer), 32-bit operating system, you may find your drive sầu is inaccessible and that Disk Management reports that the drive sầu has a GPT Protective Partition on it. The drive cannot be repartitioned và formatted in this state. This is because the internal or external hard disk was previously prepared on either a Windows or Macintosh computer with a GPT partition.

Normal Disk Management facilities will not overcome this issue. To prepare this drive, you will need to use the Windows diskpart command-line utility. The following procedure provides the steps for cleaning a GPT Protective sầu Partition from a hard disk drive sầu connected lớn an existing Windows XP (or newer), 32-bit Operating System.

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This is a data destructive process. This procedure not only removes the drive"s partition, but also removes the Drive Signature. It is highly recommended that you backup any/all critical data on the drive sầu before proceeding.
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You must open Disk Management and document the Disk Number of the drive containing the GPT Protective partition, as you will need this information later in the procedure.

Determine the disknumber assigned to lớn the GPT-protected drive.Right-cliông chồng on (My) Computer.Choose Manage.Select Disk Management (listed under Storage).Look for the drive sầu that is identified as GPT and note the Disk number (such as Disk 1).
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Open a Commvà Window. From the comm& prompt, type diskpart và press Enter. The diskpart prompt will open.From the diskpart prompt, type các mục disk and press Enter. A các mục of disks will appear in a text format. You will return to the diskpart prompt.From the diskpart prompt, type select disk disknumber (for instance, if the disk containing the GPT Protective Partition is Disk 2, you would type select disk 2)và press Enter. A message appears saying that the disk is selected. You will return to the diskpart prompt.From the diskpart prompt, type clean & press Enter. At this point the drive"s partition & signature a removed. You will return lớn the diskpart prompt.From the diskpart prompt, type exit & press Enter. Type exit once more khổng lồ cthua kém the Commvà Window. At this point, the internal and/or external drive can be re-initialized, partitioned và formatted.Launch Disk Management, & lớn initialize the disk:Use the Initialize & Convert Disk Wizard...-OR-Cthất bại the Wizard, right-click on the disk in question and select Initialize Disk from the drop-down thực đơn.Once the drive sầu is initialized, continue using Disk Management to lớn partition và format the drive sầu.

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