MBR Is Corrupted

Minitool Partition Wizard Rebuild Mbr Usb
Minitool Partition Wizard Rebuild Mbr
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Minitool Partition Wizard Rebuild Mbr Partition
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As you know, MBR is the master boot record on the hard drive in your computer. It is always created in your first partition, and it is very important for your hard drive. MBR contains the executable codes for the computer boot, which always locates in the first sector of your disk. If your disk MBR gets corrupted, the operating system will fail to boot.
Usually, when system is unable to boot, you can get some error messages or information, such as “A Disk Read Error Occurred”, “Operating System not found” or “missing operating system”. In these cases, you should consider that the master boot record is damaged. Why does MBR get corrupted? Generally speaking, there are some reasons, including virus infection, mistaken operation or sudden power failure.
When MBR damage happens, what should you do? In fact, it is very easy to repair corrupted MBR rather than reinstalling Windows OS, so just try the following ways.

How to Fix MBR

Bug Fix es and Improvement s. If the space at the end of the MBR disk is occupied when creating a. For more information about the changes of newly released MiniTool Partition Wizard 12. Launch MiniTool Partition Wizard Free and choose the target disk which has a corrupted MBR. Right-click the target disk and choose Rebuild MBR option.

Run Bootrec

When it comes to MBR repair, some of you may refer to Windows built-in tool that is called Command Prompt. In order to do a boot sector repair, the first thing is that you should prepare a Windows installation disc, and then connect to your computer to start OS from this disc. Then start a restoration.
1. Launch Command Prompt. The way to open this tool is different, so just do according to a real situation.
2. Then type the following commands:
For Windows XP, type fixmbr, fixboot commands one by one.
For Windows 7/8/10, type Bootrec /fixmbr, Bootrec /fixboot to fix MBR and boot sector.

Use MiniTool Partition Wizard Bootable CD

In addition, there is another way to repair corrupted MBR. To do this work, you can ask a third-party tool for help. Here MiniTool Partition Wizard Bootable CD will be your good choice. As a reliable and professional MBR repair tool, it enables you to manage your disks and partitions when the operating system fails to boot or when there is no operating system. So in this post, the Bootable CD is available to do a repair. In order to fix the MBR and boot sector effectively, you need to download MiniTool Partition Wizard Bootable CD and then burn the .iso file to a CD/DVD or USB flash drive. Then do a repair as follows.
Step 1: Connect the flash drive or disc to your computer, then modify the boot order in BIOS to boot from this device.
Step 2: After your system boot, you will enter into the main interface of MiniTool Partition Wizard. Here right click the target hard disk to select “Rebuild MBR”. Also it is ok to click this feature from “Operations” menu.
Step 3: Then click “Apply” to make this change effective to repair corrupted MBR.
Like that, your master boot record and boot sector will be fixed. Then the computer can boot normally. In addition to rebuilding MRR, MiniTool Partition Wizard Bootable CD can do other disk and partition operations when system can’t boot, such as partition recovery, copy disk, extend/resize partition and so on. Hope this tool is useful to you.

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About Convert MBR Disk to GPT Disk

Master Boot Record (MBR) and GUID Partitioning Table (GPT) are two partition styles. Even though they achieve the mutual goal of separating the information for the operating system, they are very different from one another.

Minitool Partition Wizard Rebuild Mbr Usb

These are 2 main differences between MBR disk and GPT disk:

Number of partitions: an MBR disk supports at most four primary partitions or three primary partitions and one extended partition while a GPT disk can support up to 128 partitions in Windows.
Size of partition: the size of a single partition in MBR disk can only reach 2 TB while the largest partition supported by GPT disk is 18 EB.

Minitool Partition Wizard Rebuild Mbr

Note: Many other outstanding features can be found in GPT disk. For more information, please read this post MBR VS GPT ( Focus on Difference and How to Convert Safely).

But these aren’t the only reasons why so many users wish to convert from MBR disk to GPT disk. One of the other amazing features the GPT disk also offers is the ability to store multiple copies of the data within the operating system.

If the data is overwritten or corrupted, the GPT disk can recover the data, so the OS will function again. In contrast, the MBR disk does not have this feature and thus unable to easily recover corrupt or overwritten data.

This explains why a growing number of users would like to convert MBR disk to GPT disk as soon as possible. But how to convert MBR disk to GPT disk without data loss? We suggest using MiniTool Partition Wizard Free Edition.

Note: The Free Edition can only convert a data disk to GPT. If users want to convert a system disk to GPT, they need to upgrade to an advanced edition.

How to Convert MBR Disk to GPT Disk

Importance:

If users are dealing with the system disk, do the followings in advance in case of any accidents after the conversion.

Create a system image or back up the whole system disk.

If there are multiple operating systems, please confirm which operating system needs booting from GPT disk, and then boot from it to do the conversion. MiniTool Partition Wizard is not responsible for the rest operating systems not booting after the conversion. Do it at your own risk.

The downloading and installation process of MiniTool Partition Wizard is easy to finish, even for inexperienced users. Now, let’s see how to do:

Note: MiniTool Partition Wizard can help users convert an MBR disk containing Windows to GPT, provided that the System & Boot & Active partitions are located on the same disk. But if users want to boot from the GPT disk successfully, UEFI mode should be supported and enabled.

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Step 1. Choose the MBR disk that users want to convert.

Goblet of fire. Step 2. Select Convert MBR Disk to GPT Disk function through following three ways.

Minitool Partition Wizard Rebuild Mbr Partition

Click it under the Convert Disk list.
Choose it from the drop-down list of Disk menu at the top.
Right-click the target disk and choose it from the pop-up list.

Step 3. Click on Apply button in order to carry out pending operations.

Step 4. Choose Yes in the pop-up prompt window to start converting a disk from MBR to GPT.

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Step 5. Click OK button at the end of conversion to end the process.