All About Fix MBR2GPT Conversion Failed on Windows

All About Fix MBR2GPT Conversion Failed on Windows

The Master Boot Record (MBR) to GUID Partition Table (GPT) conversion process is a crucial step for transitioning a Windows System from Legacy BIOS to UEFI firmware. However, users often encounter the Fix MBR2GPT Conversion Failed error, which can cause frustration and hinder the conversion process. In this article, we will delve into the potential causes of this error and provide solutions to successfully fix the MBR2GPT conversion failure on Windows. So, let’s explore the world of MBR2GPT conversion and understand how to troubleshoot this issue effectively.

[FIXED] MBR2GPT Conversion Failed on Windows

Are you trying to convert your hard drive from MBR to GPT format on your Windows system? If so, you may have encountered an error message that says “MBR2GPT conversion failed.” This can be a frustrating issue, as it prevents you from completing the conversion and could potentially cause issues with your hard drive.

So, what exactly is causing this error and how can you fix it? In this blog post, we will discuss the possible causes of MBR2GPT conversion failure and provide solutions to help you successfully convert your hard drive.

What is MBR2GPT Conversion?

First, let’s understand what MBR2GPT conversion is and why you might want to do it. MBR (Master Boot Record) and GPT (GUID Partition Table) are two different partitioning schemes used for hard drives. MBR has been the standard for a long time, while GPT is relatively new and offers some advantages over MBR. These include support for larger drives (over 2TB), up to 128 partitions, and more reliable data storage.

If you have a new hard drive or are upgrading your current one, you may want to convert from MBR to GPT in order to take advantage of these benefits. The MBR2GPT conversion tool is a built-in feature in Windows 10 that allows you to convert your hard drive without losing any data.

Possible Causes of MBR2GPT Conversion Failure

Now, let’s look at some potential reasons why your MBR2GPT conversion might have failed:

1. Incompatible hardware or BIOS settings

The MBR2GPT conversion requires your system to support UEFI (Unified Extensible Firmware Interface) mode and have BIOS settings properly configured. If your hardware is not compatible with UEFI or you have incorrect BIOS settings, the MBR2GPT conversion may fail.

2. System or hard drive errors

If your system or hard drive has any errors, it might interfere with the conversion process and lead to failures. These errors could be caused by corrupted system files, bad sectors on the hard drive, or other issues.

3. Lack of free space on the hard drive

Converting from MBR to GPT requires available free space on the hard drive. If you have a full hard drive, the conversion will fail.

Solutions to Fix MBR2GPT Conversion Failure

Now that we know the possible reasons for the MBR2GPT conversion failure, let’s look at some solutions to fix the issue:

1. Check hardware compatibility and BIOS settings

Before attempting the conversion, make sure your hardware is compatible with UEFI and that your BIOS settings are configured correctly. You can check this by accessing your BIOS settings and looking for options related to UEFI and Secure Boot. If you are not sure, consult your system’s manual or contact the manufacturer for more information.

2. Run chkdsk to fix errors

If your hard drive has errors, you can run the chkdsk command in Command Prompt to fix them. Open Command Prompt as an administrator and type in the command “chkdsk /f C:” (replace C with the drive letter of the hard drive you are converting). This will scan and fix any errors on the hard drive. Once done, try the MBR2GPT conversion again.

3. Free up space on the hard drive

If there is not enough free space on the hard drive, the conversion will fail

Prerequisites: Check system requirements

Before you install any new software or application on your device, it is important to check the system requirements to ensure that your device is compatible. This is especially important for more resource-intensive programs such as video editors or gaming software. Here are some key prerequisites to keep in mind before installing any new software.

1. Operating System Compatibility

The first thing to check is whether the software you want to install is compatible with your device’s operating system (OS). Most software will require a specific version of an OS, such as Windows 10 or macOS 11. Make sure to check the minimum version required and ensure that your device meets it.

2. Processor and RAM

The processor and RAM are crucial components that determine the performance of your device. Some software may require a minimum processing power and RAM to run smoothly. Check the system requirements to see if your processor and RAM meet the minimum requirements. If not, you may need to upgrade your device’s hardware before installing the software.

3. Graphics Card

If you are installing graphics-intensive software such as video editors or games, you will need a dedicated graphics card. Check the system requirements for the recommended graphics card and make sure your device has it. If you are using a laptop or an older computer, you may need to upgrade your graphics card to run the software properly.

4. Free Storage Space

Every software requires a certain amount of free storage space to be installed and run properly. Make sure to check the system requirements for the minimum free storage space needed for the software. If your device does not have enough, consider deleting unnecessary files or upgrading your storage.

5. Internet Connection

Some software may require an internet connection to function properly or to download updates. Check the system requirements to see if the software needs an internet connection. If you have a limited or slow internet connection, this may impact the software’s performance or your ability to use certain features.

6. Other Prerequisites

Apart from the above-mentioned requirements, some software may have additional prerequisites, such as specific software or drivers that need to be installed on your device. Make sure to check the system requirements for any additional prerequisites and install them before attempting to install the main software.

In conclusion, checking the system requirements is an essential step before installing any new software. It ensures that your device meets the necessary specifications for the software to work properly. Failing to meet the system requirements may result in the software not working or causing issues with your device’s performance. So, always make sure to double-check the prerequisites before installing any new software.

MBR2GPT Conversion Failed Common Error Codes:

MBR2GPT Conversion Failed Common Error Codes:

MBR2GPT is a built-in command line utility in Windows 10 that allows users to convert a disk from using the Master Boot Record (MBR) to the GUID Partition Table (GPT) partition style without losing any data. This conversion is necessary for systems that need to use the Unified Extensible Firmware Interface (UEFI) instead of the traditional BIOS.

While the MBR2GPT conversion is generally a smooth process, users may encounter a few common error codes during the conversion. In this blog, we will discuss these error codes and how to troubleshoot them.

1. Error code 0x00000001: The specified device is not found

This error code usually occurs when the tool is unable to find the device or disk on which the conversion is supposed to take place. This can happen if the disk is already converted to GPT or if it is not initialized properly. To fix this issue, make sure the disk is initialized and in the proper format.

2. Error code 0x00000002: The system cannot find the file specified

This error code usually indicates that the necessary files for the conversion are missing or corrupted. To fix this, ensure that you have the latest version of Windows 10 installed and that all system files are intact.

3. Error code 0x00000003: The specified disk is not convertible

This error code is usually encountered when the disk on which the conversion is being performed has partitions that are not recognized by the MBR2GPT utility. To fix this, you will need to remove these partitions or convert them to recognized formats.

4. Error code 0x00000004: The current system partition is not supported for conversion

This error can occur if the system partition is formatted in FAT32 instead of NTFS. To resolve this, you will need to convert the system partition to NTFS.

5. Error code 0x00000005: The disk is too small

This error code indicates that the disk on which the conversion is being performed is smaller than the minimum size required for the GPT partition style. You will need to resize the disk to meet these requirements.

6. Error code 0x00000006: Could not move the GPT partition.

This error code usually occurs if the tool is unable to move the Windows RE tools partition during the conversion process. To fix this, ensure that the Windows RE tools partition is not locked or protected.

7. Error code 0x00000007: Conversion not allowed

This error code can be encountered when performing the conversion on a Removable, Operating system, Read-only (ROM) device, or virtual disk. To fix this, make sure the disk is not in use or is removable.

8. Error code 0x00000008: This tool can only be run on the system boot partition

This error code can occur when the MBR2GPT utility is not run on the currently running system partition. To fix this, make sure to run the tool on the system partition.

Final Thoughts

The MBR2GPT conversion process is generally a smooth and straightforward process. However, it is not uncommon to encounter some of the common error codes mentioned above. By understanding what these error codes mean and how to fix them, you can successfully complete the conversion without losing any data. We hope this blog has been helpful in troubleshooting any issues you may encounter during the MBR2GPT conversion

Perform MBR2GPT Conversion using another Tool

Converting a disk from Master Boot Record (MBR) to Guid Partition Table (GPT) is a common task for many system administrators and IT professionals. Microsoft has provided a built-in tool called MBR2GPT to simplify the conversion process. However, there are other third-party tools available that can also perform this conversion.

In this blog post, we will discuss how to use another tool for MBR2GPT conversion, its advantages and disadvantages, and steps to perform the conversion.

Advantages of using another tool for MBR2GPT conversion:

1. Flexibility: Third-party tools often provide more flexibility than built-in tools. They may have additional options and settings that allow for a more customized conversion process.

2. Compatibility: Some computers may not be able to boot from a GPT disk using the built-in MBR2GPT tool. In such cases, using another tool may solve the compatibility issue.

3. Automation: Some third-party tools offer automation features that can save time and effort for large-scale conversions.

4. Additional features: Apart from MBR2GPT conversion, third-party tools may provide additional features such as disk cloning, partition management, and data recovery.

Steps to perform MBR2GPT conversion using another tool:

Step 1: Download and install the third-party conversion tool.

Step 2: Backup all important data on the disk as the conversion process involves formatting the disk.

Step 3: Run the conversion tool and select the disk you want to convert from MBR to GPT.

Step 4: Choose the conversion mode – either using BIOS or UEFI.

Step 5: Follow the prompts to complete the conversion process.

Step 6: Once the conversion is complete, restart the computer and make sure it boots successfully from the GPT disk.

Disadvantages of using another tool for MBR2GPT conversion:

1. Cost: Most third-party conversion tools come with a price tag, unlike the built-in MBR2GPT tool, which is free.

2. Compatibility issues: Some third-party tools may not be compatible with certain hardware configurations, resulting in an unsuccessful conversion.

3. Complexity: Using third-party tools may require some technical knowledge and can be more complex compared to the built-in tool.


Overall, using another tool for MBR2GPT conversion can provide more flexibility and additional features. It is important to carefully select a reliable and compatible third-party tool for a successful conversion. However, users should also be aware of the cost and complexity associated with using third-party tools compared to the built-in MBR2GPT tool.


In conclusion, the MBR2GPT conversion process on Windows can sometimes fail due to various reasons such as incompatible system requirements, hardware issues, or software conflicts. However, with the methods mentioned in this article, you can easily troubleshoot and successfully complete the conversion process. It is crucial to understand the basics of MBR2GPT and to follow the steps carefully to avoid any errors. If the issue persists, seeking professional help or reaching out to Microsoft support can be beneficial. With proper guidance and troubleshooting, you can efficiently resolve the conversion failed error and enjoy the benefits of a GPT partitioned disk on your Windows system.

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