If conversion is successful the disk can only be booted in GPT mode. . These changes cannot be undone! MBR2GPT: Attempting to convert disk 0 . " Because MBR2GPT was used, the partitions aren't standard: the recovery partition (System_DRV) comes first, followed by the EFI partition and the C drive. If all goes well, you should see a successful message. msc and hit Enter to open the Disk Management window. If not specified, the. To convert MBR to GPT using the built-in MBR2GPT. Here's my suggestion: Boot up Windows. #1. The MBR2GPT tool is used to convert disk 0. Disk layout validation failed for disk 0. Download and launch EaseUS Partition Master on your computer. . exe and convert it to MBR. select volume c. The docs above state that if you leave off the "/disk:X" switch, it will attempt to find the system disk itself. e. The author has 3 plus an extended partition. • 2 yr. 今回は、デスクトップPCのマザーボードなどの. Windows cannot be installed to this disk. GPT supports much more and is only limited by the OS. MBR2GPT will now attempt to convert disk 0. Try the MBR2GPT conversion tool. In the Command Prompt window, type diskpart and press Enter key. 6. Previous methods are considered a destructive conversion as the technician, application, or process must wipe the disk before converting the disk to a GPT disk. EXE tool to convert the MBR disk to the GPT partition format. – harrymc. Although MBR2GPT is easy to use, your disk partition configuration must meet the requirements below. If a conversion is successful the disk can only be booted in GPT mode. So if you have an Exchange Server mailbox database growing more than 2 TB, you need GPT. mbr2gpt /validate /disk:0 /allowFullOS . “MBR2GPT cannot find OS” when converting the data disk. GPTかどうか調べる cmdでdiskpartと入力。 diskpart. exe to perform the disk validation and to proceed with the conversion if all validation tests. Right-click on the target disk, and select " Convert to GPT Disk ". )MBR2GPT will now attempt to convert disk 1. Reboot the computer and run mbr2gpt /validate. #5. /disk:<diskNumber> Specifies the disk number of the disk to be. If conversion is successful the disk can only be booted in GPT mode. Before this, though (in the same windows session, without rebooting), I also deleted a 61GB extended partition and a 3,9GB logical partition (which I wasn't aware that existed, probably residual from my old Ubuntu or Windows 8. When using this tool, the conversion process. exe to perform only the disk validation steps and report whether the disk is eligible for conversion. Click Yes and then Yes again to confirm two warnings. It won’t work for any data disks that don. Make sure to back up the ReAgent. What you need to do is to shrink C drive a bit and copy the system Reserved Partition fron drive 0 to drive 1. If the MBR disk is with BitLocker-encrypted volumes, it is recommended to suspend the protection at first. Here is how you create your own USB Key Windows 10 installation media. It has two disk drives in it. These changes cannot be undone! MBR2GPT:. How to convert MBR to GPT in Windows 10 with MBR2GPT command: Back up your system with Windows native or third party software in case of. These changes. MBR2GPT: Validating layout, disk sector size is: 512 bytes . MBR2GPT will now attempt to convert disk 1. The process fails repeatedly, returning the following error: MBR2GPT will now attempt to convert the default book disk. These changes cannot be undone!By default, MBR2GPT. 42. replied to Naeem86 Oct 06 2021. Now look or the disk number where your Windows is installed. type: mbr2gpt /validate. MBR2GPT: Retrieving layout of disk . Step 3. exe to perform the disk validation and to proceed with the conversion if all validation tests pass. . Follow this steps: - Detach (SATA or power cable) drive 1 & 2 from the MB. list volume. It also has only one fluent speaker left, something linguists. Ahva intends to add the hard disk to a storage pool. /allowFullOS - By default, MBR2GPT. - Use a tool like AEOMI Partition Assistant and convert it to MBR. We will use the official Microsoft tool "MBR2GPT. Step 4: Right-click on the system disk and choose Convert MBR Disk to GPT Disk. ; Click on Update & Security. Example Reagentc /enable /osguid {00000000-0000-0000-0000-000000000000} Be careful, make system image before. I'd rather not reinstall all my software. Sep 28, 2021 at 19:36. There is enough space not occupied by partitions to store the primary and secondary GPTs: 16KB + 2 sectors at the front of the disk; 16KB + 1 sector at the end of the disk; The other requirements to use MBR2GPT is as. In this case, a new. The only advantage of GPT is that it allows using hard disks of more than 2 TB. since the existing partition is already running windows the following attribute will create a new ESP and convert that to GPT. C:Windowssystem32>mbr2gpt /validate /allowFullOS /disk:4 MBR2GPT: Attempting to validate disk 4 MBR2GPT: Retrieving layout of disk MBR2GPT: Validating layout, disk sector size is: 512 bytes Cannot find OS partition(s) for disk 4. My hard drive is already GPT, so the validation failed, but you get the idea. You are only allowed to run the tool from Windows PE. Note: Since the existing MBR system partition is in use while running the full Windows environment, it can't be reused. Being a command line utility, MBR2GPT. A ferramenta é executada a partir de um prompt de comando do Windows Preinstallation Environment (Windows PE), mas também pode ser executada a partir do. Windows 10 Recovery Tools - Bootable Rescue Disk Solved - Windows 10 Forums Detach (power or SATA cable) of all other disks Make sure. Also, when you’re fully running on the new disk, go back and enable the UEFI Secure Boot feature. Confirm the UAC dialog if it appears. MBR2GPT. MBR2GPT: Before the new system can boot properly you need to switch the firmware to boot to UEFI mode! STEP 3 Reboot your PC. If conversion is successful the disk can only be booted in GPT mode. Posted 25 February 2018 - 11:48 AM. Sometimes, the cause of a fail is out of our control. Here I leave the Disk Mg info (it is in Spanish, but you can easily deduce everything I. The command for the purpose is mbr2gpt /validate /disk:1 /allowFullOS. If everything is ok run mbr2gpt /convert. Run the following command: mbr2gpt. I am attaching what my drive manager looks like and the MBR to GPT conversion failure. exe /disk:4 /convert /allowFullOS. Continue the Windows Setup installation. Then you know the disk number of the disk that you want to convert. WinPE_X86_PSmountoot2. The DiskPart tool displays that disk 0 is now using the GPT format. Even though the tools gptgen and mbr2gpt. These changes cannot be undone! MBR2GPT: Attempting to convert disk 0 MBR2GPT: Retrieving layout of disk MBR2GPT: Validating layout, disk sector size is:. These changes cannot be undone! MBR2GPT: Attempting to convert disk 0 MBR2GPT: Retrieving layout of disk MBR2GPT:. I quickly found the MBR2GPT tool, but I wonder if the result would be nice or if it would be better a clean installation. If all you're wanting. type:list disk. Add a step to restart the computer to Windows PE before the. Now run mbr2gpt /convert /disk:ID with the ID: X:>mbr2gpt /convert /disk:0 MBR2GPT will now attempt to convert disk 0. Select disk n (n is number of drive with C:, usually 0) clean (wipes drive completely) convert gpt. C:\WINDOWS\system32>mbr2gpt /convert ERROR: MBR2GPT can only be used from the Windows Preinstallation Environment. Using MBR2GPT to validate the partition. It doesn't make any sense to clean the disk and then use MRB2GPT on it. While the process is fairly quick with the Gptgen tool, the general. Command-line syntax notation 1 Open a command prompt at boot. However, you can use An attribute to allow the existing partition to run the MBR2GPT tool. Open your computer normally. MBR2GPT. If conversion is successful the disk can only be booted in GPT mode. In this case, there is only one partition with a size of 476. exe to perform only the disk validation steps and report whether the disk is. Step 1. Type “ Diskpart ” into the CMD window. c) reagentc /info. exe provided by Microsoft. 2) You can delete SRP first to reduce MBR partitions to 3. Disk layout validation failed for disk 1. ctrl + c. MBR is just as good as GPT. On a MBR disk, you can only create 4 Primary partitions and use maximum 2TB disk space. The MBR2GPT tool is used to convert disk 0. Simply click Yes to confirm, then a pending operation is added. The DiskPart tool displays that disk 0 is now using the GPT format. So, if you can’t convert your disk, it probably doesn't match all requirements. EXE konvertiert eine Festplatte aus dem Master Boot Record (MBR) in eine GUID-Partitionstabelle (GPT), ohne Daten auf dem Datenträger zu ändern oder zu löschen. Convert MBR to GPT in Windows 2016 server with disk converter: Download NIUBI Partition Editor, right click the front of the MBR disk and select " Convert to GPT Disk ". 1. Type select disk * (replace * with the disk number that you want to remove partitions on) and hit Enter. Step 2. Then follow the hints to finish converting MBR to GPT. MBR2GPT. C:Windowssystem32>MBR2GPT. Right-Click on the DISK 0 Drive where you want to create an unallocated space and select the “Shrink Volume” option. 2. Instead, reboot your system into your BIOS Setup. a. After we have validated the partition for conversion, we can run the conversion from the MBR disk to GPT using the following command: mbr2gpt. 版本：win10 1703 当前主机非PE. I mentioned that my Windows is in a VM. Usually. “ 0 Likes . Before saving files to a brand new hard disk, you must initialize this disk. Then click on Apply to execute the conversion. And multiple partitions cannot be converted to GPT partitioning without. 2) As you can see from the attached screenshots, there are a few partitions that have been created on the main bootable disk which appear to be for. Right-click diskmgmt. Restart the system and boot into the system BIOS. 2) Después de la conversión: Debemos entrar en la BIOS/UEFI, y cambiar el método de boot, configurando que utilice UEFI y no “Legacy BIOS”. Step 1: In the main interface of MiniTool Partition Wizard, right-click on the system disk and then choose Convert MBR Disk to GPT Disk or choose this feature from the Convert Disk menu. Please read through this tutorial Convert MBR Disk to GPT Disk in Windows 10 from the searchable tutorials list which you may care to bookmark: Windows 10 Tutorial Index You will need to check your Mobo supports UEFI. Drill down to the C: partition by list disk and select disk # and list partition and select partition #. " You can also press Windows Key+R to open the Run dialog, type "diskmgmt. These changes cannot be undone! MBR2GPT: Attempting to convert disk 0 MBR2GPT: Retrieving layout of disk MBR2GPT: Validating layout, disk sector size is: 512 bytes Open your computer normally. It should be started with a special set of arguments. If you use MBR2GPT command line, then you only convert the selected partition. Use /allowFullOS to override. MBR2GPT: Validating layout, disk sector size is:. Now check you can boot directly into disk2 by using the one time boot menu ( usually tap f12. Do note that MBR2GPT can only be used from the Windows Preinstallation Environment. msc into Run, and click/tap on OK to open Disk Management. If conversion is successful the disk can only be booted in GPT mode. See moreYou can use MBR2GPT to: Convert any attached MBR-formatted system disk to the GPT partition format. The data disks aren’t supported. Convert Windows 10 from Legacy BIOS to UEFI without Data Loss. Now, type convert gpt to convert the MBR partition table scheme into GPT partition table scheme. Right-click “ My Computer/This PC ” -->” Manage ”-->” Disk Management ”. If you already have Secure Boot enabled, and Windows will boot, your disk is already GPT. On the main interface, right-click the disk you want to convert to GPT and then choose the Convert MBR Disk to GPT Disk option from the context menu. That way if the procedure fails we can restore from backup. GPT supports Cyclic Redundancy Check (CRC) for the integrity of data, while. The drive will appear as a single area of unallocated space. convert gave this (which i saw later due to missing stuff from 1903 and up) C:WINDOWSsystem32> MBR2GPT. Open the Run dialog (Windows key + R) and type diskmgmt. Some users report that MBR2GPT can’t find the operating system (OS) partition on disk 0 when they attempt to do the conversion. MBR2GPT: Retrieving layout of disk. This will open the Disk Management console. exe /convert /allowfullOS MBR2GPT will now attempt to convert the default book disk. Greetings. Note: My system was already booting in UEFI mode to a MBR disk, which is why there was no BCD data in the typical location. In the command prompt, do this: Type: diskpart. ; Open Disk Manager. If conversion is successful the disk can only be booted in GPT mode. If conversion is successful the disk can only be booted in GPT mode. Repeat to delete all partitions. For a more detailed explanation: 1. On the computer that the command was tested it displayed: attempting to validate disk 0. Nepal's Kusunda language has no known origin and a number of quirks, like no words for "yes" or "no". The mbr2gpt tool can be used to convert the partition table both in Windows PE (Windows Preinstallation. MBR2GPT tool. To access it, right-click the Start menu or press Windows Key+X and select "Disk Management. Select the unallocated space and click Next. C:\Windows\system32>mbr2gpt /convert /disk:0 /allowFullOS . Select “Deployment Tools” and “Windows Pre-installation Environment (Windows PE), and click “Install”. Video Tutorial Guide to Convert MBR to GPT: Simply follow the steps given below to convert an MBR disk to GPT. exe can only run from Windows PE and is blocked from running in full Windows. If all goes well, you should see a successful message. This tool can be used to efficiently and losslessly convert MBR disks (for legacy BIOS) to GPT (for UEFI) on Windows 10. Note: Since the existing MBR system partition is in use while running the full Windows environment, it can't be reused. MBR2GPT. Aug 3, 2023, 1:34 AM. since the existing partition is already running windows the following attribute will create a new ESP and convert that to GPT. If conversion is successful the disk can only be booted in GPT mode. Click the Command Prompt option. Step 2. Thanks! This thread is archived. The tool will create the media install by itself on your USB Key. After that, you have converted MBR to GPT. C:\WINDOWS\system32>mbr2gpt /convert /allowFullOS. There are two ways that MBR2GPT can convert a drive from MBR to GPT–offline, and online. In addition, it can work on all. MBR2GPT: Retrieving layout of disk. Step 3: Once the window for the command prompt opens, type the following commands (press enter on keyboard in each. - Use a boot disk with MBR2GPT. MBR can have up to 4 primary partitions, while the GPT can have up to 128 primary partitions. exe and the conversion was completed successfully. exe to perform only the disk validation steps and report whether the disk is eligible. Step 3. Windows Command Prompt. But only 64-bit editions on UEFI-based systems can be used as system disks. Then you can swap drives and boot into drive 0 and run mbr2gpt on that drive. MBR2GPT: Validating layout, disk. I have went through with the process, converted my boot SSD to GPT using mbr2gpt. If the disk is already initialized, right-click the label on the left and click Convert to GPT Disk. These changes cannot be undone! MBR2GPT:. It will open the Device Properties window. Step 3. exe /convert /allowfullos. C Drive. The selected disk has an MBR partition table. Run reagentc /disable. " Because MBR2GPT was used, the partitions aren't standard: the recovery partition (System_DRV) comes first, followed by the EFI partition and the C drive. Also, MBR only supports 4 partitions, so you cannot have more than 3 on the drive when using it. Open Command Prompt with administrator privileges. These changes cannot be undone! MBR2GPT: Attempting to convert disk 0 MBR2GPT: Retrieving layout of disk MBR2GPT: Validating layout, disk. /disk: Specifies the disk. When it ask you where you want to create that media you choose your USB Key (8GB USB Key minimum). 3. C:WINDOWSsystem32>mbr2gpt. Also, the system might become unbootable. exe (provided in Windows 10) With the modded BIOS and the drive set to GPT, I was able to boot Windows 10 from the M. If conversion is successful the disk can only be booted in GPT mode. Hi everyone, I installed w11 in legacy mode because of my very old gpu which doesn't support UEFI. With NIUBI Partition Editor,. This option overrides this block and enables disk conversion while running in the full Windows environment. These changes cannot be undone!1. These changes cannot be undone! MBR2GPT: Attempting to convert disk 0 MBR2GPT:. MBR2GPT: Validating layout, disk sector size is: 512. It makes more sense to do as you did in effect i. Notice: If your computer is a laptop, make sure that the power supply is sufficient. However, I found that my USB is booted only in EFI style, and Windows 10 is refusing to be installed to my BIOS/MBR/CSM mode system when my USB is booted in EFI style. It runs under Parallels, on a MacBook Pro. If the disk is empty, you can just convert it to GPT without any additional tool. Hopefully you'll see a "Validation completed successfully" message. There is no dispute about that. that will also do the same what you will do through windows cmd. If you want to convert a MBR disk with only data to GPT, you have to run third party software. C:WINDOWSsystem32>mbr2gpt. One of the other requirements is not to have any extended partitions, look to the primary rule of only having 3 partitions, on the reason why that's the case. MBR2GPT. These changes cannot be undone! MBR2GPT: Attempting to convert disk 0 MBR2GPT: Retrieving layout of disk MBR2GPT: Validating layout, disk sector size is: 512 bytes It can be done with diskgenius free versiosn. While MBR2GPT. Type select disk 1 to tell diskpart you’d like to perform an action on a disk. If you’d like to keep your data, you’d need to use MBR2GPT or a third party partitioning software. Thus, you may need to upgrade your Windows to a higher version, like Windows 11. 1. The relevation that the author is actually attempting to use operating systems while in EFI Only mode was made clear in a comment. Select the disk to convert > Right-click the MBR disk and choose "Convert to GPT" > Click "Apply" to commit the changes. and performs the actual conversion. bcdboot c:Windows /f bios /s c: Once you've done this, you should be able to run mbr2gpt successfully. This will convert MBR to GPT. I think those steps will fail because mbr2gpt is looking for a system partition, which you just deleted previously. Jetzt habe ich gelesen, man kann dies mit dem Boardmittel "mbr2gpt. wしかし、Windows11がUEFIのみの対応の為、Microsoftから元のシステムがレガシー (MBR)環境でも、UEFI環境からの (GPT)起動が可能としてブート情報を追加して変換できるコマンドが「コマンドプロンプト」にて 『mbr2gpt. The only other thing i can suggest is try using Windows PE. 「ERROR: MBR2GPT can only be used from the Windows Preinstallation Environment. msc. Step 2: Click the Apply button to execute. The only issue with it this - It needs to be able to shrink 600MB or so from the end of the drive, and be. Finally, execute the commands “ list disk->select disk #->clean ->convert gpt ” to convert the disk from MBR to GPT. delete system partition first. MBR2GPT can convert within the OS by adding the /allowfullos. Boot Windows install USB → When GUI loads, open terminal via Shift + F10. EXE tool when in Windows PE instead of in the full OS. By default, MBR2GPT is blocked on Windows 10. HP BCU is the tool to use to configure boot. Here’s how: Step 1. MBR2GPT: Retrieving layout of disk. Right-click on the Windows installation disk, Disk 0, and select “Properties. 4. Execute the following command to validate that. list disktwo way, you can do. Then I had some serious stability issues and worked through until I determined one of the two sticks of RAM was bad. exe to perform the disk validation and to proceed with the conversion if all validation tests pass. exe tool available to convert Legacy MBR disk to GPT disk in a non-destructive conversion. For purposes of the below steps, we will refer to the GUID Partition Table as GPT, and legacy Master Boot Record as legacy MBR boot disks. 1. xml file. MBR2GPT: Before the new system can boot properly you need to switch the firmware to boot to UEFI mode! I then went into the bios and changed to UEFI and enabled Secure Boot but Windows was unable to boot. You can use this tool to. Open cmd in admin mode. These changes cannot be undone! MBR2GPT: Attempting to convert disk 0 MBR2GPT: Retrieving layout of disk MBR2GPT: Validating layout, disk sector size is: 512 bytes MBR2GPT: Trying to shrink the system partition MBR2GPT: Trying to shrink the OS partition Cannot find. Now just to confirm that disk has been converted to GPT type LIST DISK. 2021-09-14. exe is a new built-in Windows 10 console tool that allows you to convert a disk with the MBR (Master Boot Record) partition table to a GPT (GUID Partition Table) without data loss and without the need to delete existing partition. GPT supports all sizes of drives. These changes cannot be undone! MBR2GPT: Attempting to convert disk 0 MBR2GPT: Retrieving layout of disk. For details, see Convert MBR partition to GPT. Códigos de retorno. Disk 1 has two Volumes, the OS/Boot Volume and a data Volume. 3. リターン コード. If it boots normally, shut down, attach drive 0 and drive 2, boot from drive 1 and set drive 0 as non active. I read a bit about it, and it seems to not work because disk 0 isnt a system disk, but in my. Do NOT run MBR2GPT in Windows. #1 Disk 1 is SSD; Disk 0 is HDD. Step 2. (see screenshot below) 3 When the conversion has successfully completed, you will need to boot to UEFI firmware settings, and switch the firmware to boot to UEFI mode instead of Legacy BIOS (CSM). Step 3. Note: Disk Management can only convert data disk instead of OS disk to GPT with certain kind of conditions listed in the front of this article (the same ones as mbr2gpt convert cmd). For your reference, they are: /validate Instructs MBR2GPT. Click on Advanced options. The command for the purpose is mbr2gpt. Running disk conversion from MBR to GPT using MBR2GPT. Select the target MBR disk that you tend to convert to GPT, and click "Convert" to start the conversion. The only free, data-friendly way to convert to gpt seems to be mbr2gpt which for some reason beyond me, can only be found on a build that is already gpt locked, so I'm in a catch 22 here. The syntax of the command is as follows: MBR2GPT /validate|convert [/disk:] [/logs:] [/map:=] [/allowFullOS] Here is a brief description of the available command line parameters. Following are the steps you need to take for conversion of MBR2GPT: Step 1: Start backing up your system disk to prevent unexpected errors. Do that on the outgoing disk, enable UEFI boot mode, make sure it works, and then just make an image backup of your converted disk to use as-is for your new disk. These changes cannot be undone! Unlike older methods requiring a backup of your data and reinstalling Windows, the MBR2GPT tool makes it easy to change the partition style quickly. ERROR: MBR2GPT can only be used from the Windows Preinstallation Environment. If there is only one hard disk, it has the number "0". mbr2gpt /convert /disk:0 MBR2GPT will now attempt to convert the default book disk. The MBR2GPT only supports converting MBR system disk to GPT. After Windows is installed, if you need to switch firmware modes, you may be able to use the MBR2GPT tool. MBR2GPT usually works just fine. d) diskpart. MBR2GPT: Validating layout, disk sector size is: 512 bytes. If conversion is successful the disk can only be booted in GPT mode. Note that Windows can use a GPT disk in Legacy Mode, as long as this is. The advantage of this tool is that it will not destroy your disk files during the conversion, it is only available in Windows 1703 version 10 and later, but that does not mean that you cannot download it and put it on your computer. exe can be run from the full OS, or in WinPE, it should be run before the conversion of BIOS to UEFI during an in-place upgrade and most preferably in WinPE. MBR2GPT cannot find OS partition . Microsoft has made a new Mbr2gpt. A data disk can be backed up, converted, then restored using dism and the disk management console. Go to the Start Menu and search for Create and format your hard disk partitions to find the Best match. The. Download and make a WinPE rescue USB disk. I read somewhere I should use switch from BIOS to UEFI to boot from USB and that I should use the tool mbr2gpt for that, since there's no UEFI option in the BIOS settings. C:WINDOWSsystem32>mbr2gpt. MBR disk only supports 4 primary partitions or three primary partitions plus one extended partition. PS C:\Users\Marcelo Pires> mbr2gpt /validate /allowFullOS . If conversion is successful the disk can only be booted in GPT mode. . Once the installing is finished,. 2021-09-14 16:08:24, Info MBR2GPT was explicitly asked to run in full OS mode. You just need to wait until MiniTool Partition Wizard opens automatically. /convert: Instructs MBR2GPT. MBR2GPT. Read the following, if you wish to restore an MBR backup to a GPT configured disk. PS C:\WINDOWS\system32> mbr2gpt /validate /allowFullOS MBR2GPT: Attempting to validate disk 9 MBR2GPT: Retrieving layout of disk MBR2GPT: Validating layout, disk sector size is: 512 bytes MBR2GPT: Validation completed successfully Step 3: After the PC boots from the bootable media, please do not do any operations. Now I bought a gt730, and I want to switch without entirely reinstalling the OS. Windows begins the installation. Copy. Before converting, ensure a bootable Windows installer USB pen drive is present, which can be used to correct this if it occurs. exe is a Windows 11/10 native disk conversion tool PC users can use to convert a disk with the MBR partition table to a GPT. . MBR2GPT: Validating layout, disk sector size is: 512 bytes The MBR2GPT. The mechanism used is the same as used by the diskpart. Step 4. "ERROR: MBR2GPT can only be used from the Windows Preinstallation Environment. The AHCI/IDE setting can usually be found under SATA settings under the. Use MBR2GPT. When using the mbr2gpt command-line tool, only the system drive will be converted to GPT unless to modify the command and. Now just run mbr2gpt to do the conversion, for example the below will convert disk 0 to GPT. I was then able to use mbr2gpt /convert and the conversion worked! Nothing was lost (other than a lot of hair), and I checked the system with PC Health and got confirmation - the system requirements for Windows 11 are now met!. 2) You can delete SRP first to reduce MBR partitions to 3. exe" is a specific utility provided by Microsoft as part of Windows 10, starting with version 1703, which allows users to convert a disk from MBR (Master Boot Record) to GPT (GUID Partition Table) without data loss.