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How to Fix Windows Cannot Be Installed to This Disk MBR

Wondershare Recoverit Authors

Jul 17, 2024 • Filed to: Answer Hard Drive Problems • Proven solutions

“A while back, while installing a fresh copy of Windows 10 on my HP computer, I got the error: Windows cannot be installed to this MBR disk. Can someone tell me how to fix it?”

As surprising as it might sound, getting the MBR/GPT compatibility errors on Windows is pretty common. For instance, if you are trying to install a newer version of Windows on an MBR disk, then you can get an error stating: Windows cannot be installed to this MBR disk. On the EFI system, Windows can only be installed on GPT disks. Don’t worry, in this post, I will help you diagnose this issue and fix it by formatting the disk in the GPT partition style.

Windows MBR Disk Error

What is the difference between MBR and GPT Partition Styles?

Before we discuss how to resolve the “The selected disk is of GPT partition style” error, let’s quickly understand the difference between MBR and GTP.

MBR: MBR, which stands for Master Boot Record, is a dedicated boot sector that is located at the beginning of the storage unit. Therefore, it is the first sector in the media that stores information about the operating system and booting sequence. The only issue is that the MBR style can only hold up to 4 partitions and manage a maximum of 2 TB disk storage. Learn more about what is MBR.

GPT: GPT (Global Unique Identifier Partition Table) is also a partitioning style, but it is considered more advanced than MBR. While it also stores the booting data and sequence, it can surpass the storage and partition limitations of MBR and is mostly used to install the latest operating systems. Learn more about what is GPT.

MBR or GPT Comparison

Why Does Windows Cannot Be Installed on an MBR disk?

Ideally, Windows installation can be divided into two categories: Legacy or UEFI. The legacy installation is done for older versions of Windows (like Windows XP or Vista) and it supports MBR partitioning style. Therefore, if you are trying to install a legacy system on the GPT drive, then you would get the Windows cannot be installed to this disk GPT error.

Similarly, if you are trying to install the UEFI system to an MBR disk, then you would be asked to format it in the GPT partition style instead. Besides that, if the disk storage is greater than 2 TB or you want to create more than 4 partitions, then MBR would not be able to support that. In these cases, users get the“Windows cannot be installed to this MBR disk. The selected disk is of GPT partition style” error.

You can check the link to get an idea on Windows Cannot Be Installed onto The GPT Disk.

How to Install Windows to the Selected Disk and Fix the MBR Issue?

As you can see, the “Windows cannot be installed on this MBR disk” can happen due to different reasons. Ideally, you can fix it in two ways – you can either format the disk in the GPT partition style or choose to install a legacy system instead.

Fix 1: Change the Boot Mode in Windows to Legacy

Since the MBR partitioning style does not support the UEFI boot mode, you can manually change it to the Legacy option. Here’s how you can fix the “Windows cannot be installed to this disk” issue by changing the boot mode.

  1. At first, you can just restart your computer and press the BIOS key, which can be F2, F8, F10, DEL, ESC, or any other designated key.
  2. As Windows would load its BIOS settings, you can use the arrow keys to navigate to the “Boot” tab.
  3. Now, you can navigate to the Boot Mode and change the option to “Legacy”. You can later restart your system and try reinstalling the firmware.

BIOS Settings Change Boot Mode

Fix 2: Format the Disk to the GPT Partition Style via Disk Management

If you want to continue with the UEFI boot mode on your computer, then you can simply format the drive in the GPT partition style. For this, you can take the assistance of Disk Management, which is an inbuilt utility tool in Windows. To learn how you can fix the “The selected disk is of GPT partition style” on your computer, follow these steps:

  1. At first, you can just launch the Disk Management application on your computer. For this, you can navigate to Control Panel > Computer Management > Disk Management. Alternatively, you can also load the Run prompt and enter the “diskmgmt.msc” command.

Open Disk Management

  1. As the Disk Management application would be launched, you can navigate the interface and select the existing MBR drive. Simply right-click the MBR drive, select the “Delete Volume” button, and confirm your choice.

Disk Management Delete Volume

  1. Simply go through a click-through process so that the existing MBR drive on the system would be removed.
  2. Afterward, you can choose the same drive, right-click, and select the “Convert to GPT disk” button. You can now confirm your choice and wait as the disk would be converted to the GPT partition style.

Disk Management Convert to GPT

Fix 3: Convert the MBR Disk to GPT via DISKPART Utility

If you want, you can also take the assistance of Command Prompt and the Disk Partition command to change the partitioning scheme of the disk. At first, this will remove the existing data on the disk and can later change its partitioning style. To fix the issue and change the scheme to the GPT partition style on your system, follow these instructions:

  1. To begin with, just go to the Start prompt on your computer and launch the Command Prompt as an administrator.
  2. Once the Command Prompt window is launched, just enter the “DISKPART” command to load the Disk Partition Utility module.
  3. Afterward, just enter the “list disk” command to get a list of the available disks and note the identifier of the MBR disk.
  4. Now, you can use the select command with the identifier to choose the disk (like select disk 2). Subsequently, enter the “clean” command that would automatically wipe all the saved data on the disk.
  5. That’s it! Once the disk’s saved content has been removed, you can just enter the “convert gpt” command that would convert its partitioning style from MBR to GPT instantly.

Diskpart Convert GPT

Fix 4: Jump Into BIOS & Disable EFI Boot Sources

If you are avoiding converting the disk and looking for a simpler technique to get through this troubling situation. You need to disable EFI boot sources and your problem will be solved. Here are the steps you can follow to implement this method

  1. First of all, you need to reboot your computer.
  2. Moving on, press the corresponding BIOS key again and again. To find the key, you can read the system’s motherboard manual. In many laptops and computers, it is F2.
  3. Find out the Boot Order Section and try to disable EFI boot sources. After this, save the changes you have made.
  4. Once EFI boot sources are disabled, try installing the windows again.
  5. Once the Windows is installed successfully, you need to go back into the BIOS and re-enable EFI boot sources.

Fix 5: During Installation, Delete Partition & Reformat

Before conducting this method, make sure you’ve made a backup of your important files. All your files will be deleted in this process.

While you are installing Windows, you will witness a dialog on your screen that will ask you about the hard drive on which you want to install the operating system. Now, choose the partition you want to reformat and later select the delete option. Moving on, create a new partition in the GPT style. After completing this procedure, your Windows will be installed successfully.

Fix 6: Use a 2.0 Flash Drive for Installation

Suppose you are in favor of utilizing an external hard drive to install Windows in the system’s hard drive, it is advised that you use a 2.0 USB flash drive. Wondering why we’ve suggested a 2.0 USB but not a 3.0 USB flash drive? 2.0 USB flash drive will allow you to boot using MBR or Legacy. Users around the world prefer using a 2.0 USB flash drive as it’s much efficient when it comes to Windows installation.

Modern motherboards are capable of supporting both the UEFI and Legacy Boot modes turned on. If you still have any doubts, you can confirm them in the BIOS. In case you are installing from a disk, a message may pop up on your screen stating “Press any key to boot from disk.” Don’t press any of the keys and calmly wait. When the message pops up for the second time, press any key to select the designated device from which you want to boot.

More Related: Copy and Backup Files without Admin Rights

Pro Tip: Restore Your Lost Data with Wondershare Recoverit Data Recovery

As you can see, while fixing the “The selected disk is of GPT partition style”, you might end up losing some data. To get it back, you can use Wondershare Recoverit Data Recovery, which is one of the best data recovery tools. It can help you recover lost, deleted, or inaccessible files under every possible scenario.

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There you go! I’m sure that after reading this post, you would be able to fix the “Windows cannot be installed to this MBR disk” issue pretty easily. I have provided solutions to change the Boot Mode or format the disk to the GPT partition style. Though, if you have formatted the drive in the process, then Recoverit Data Recovery would be an ideal solution. A user-friendly DIY application, it can get back all kinds of lost and deleted data from your system like a pro.

Step 1. Download and Install Recoverit

Install Recoverit on your computer as per the installation instructions, then open the program and navigate to the Hard Drives and Locations section.

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Step 2. Scanning the Drive

Choose the disk where the data was lost and initiate the search for the lost files, which may take some time.

search files

Step 3. Recover the Files

Once the scanning process is finished, select the desired files by checking the box next to them. Then, click on the Recover button to save and download the data to a different disk. Your files have now been successfully recovered.

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Theo Lucia

chief Editor

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