https://www.disk-partitio...art/convert-gpt-4125.html
How to convert disk from MBR to GPT with DiskPart?
Windows built-in tool Disk Management provides users to convert disk to GPT with Windows interface. But if you want to use the command line to convert disks, the DiskPart can provide a terrace. However, both Disk Management tool and DiskPart utility can only convert an empty MBR disk to GPT. To change a disk from MBR to GPT with cmd, you can following the steps below:
Before you do, there are some tips for you:
Backup the MBR disk that you want to convert into GPT disk in order to keep the data safe.
You can only convert basic MBR disks without any partitions or volumes into a GPT disk. If there are some partitions or volumes, backup the data, then, delete all partitions or volumes before converting.
If you want to convert MBR to GPT disk during Windows intsall, please open command prompt by pressing Shift + F10.
Step1. Click Start, type "cmd", and right click it, select "Run as Administrator", or press "WIN+R", type "cmd" and press Enter to open the command prompt. Then, input "diskpart" to run the utility.
Step2. Type "list volume" to make sure if there are any partitions or volumes on the MBR disk which will be converted to GPT. If there are, you need to use diskpart delete partition first.
Then, type "list disk", and press Enter, it will show you all the disks on your computer. Make note of the disk number that you want to convert to GPT disk. Here take disk 1 as an example.
Step3. Type "select disk 1", press "Enter", it will remind you that the disk 1 is selected.
Step4.Type "convert gpt", press "Enter" to submit the operation. Wait a second, you will find the Command Prompt says DiskPart successfully converted the selected disk to GPT format. Please take a look at the following screenshot.
-----
https://docs.microsoft.co...-mbr-disk-into-a-gpt-disk
Een MBR-schijf converteren naar een GPT-schijf door middel van de opdrachtregel
Maak een back-up van de gegevens op de standaard-MBR-schijf die u wilt converteren naar een GPT-schijf, of verplaats ze.
Open een opdrachtprompt met verhoogde bevoegdheid door met de rechtermuisknop te klikken op Opdrachtregel en vervolgens de optie Als administrator uitvoeren te kiezen.
Typ diskpart. Als de schijf geen partities of volumes bevat, gaat u verder met stap 6.
Typ bij de DISKPART-prompt list disk. Noteer het nummer van de schijf die u wilt converteren.
Typ bij de DISKPART-prompt select disk <disknumber>.
Typ bij de DISKPART-prompt clean.
Notitie
Met de opdracht clean verwijdert u alle partities of volumes op de schijf.