Here's a detailed step-by-step guide on how to convert hard disk drive partitions from GPT to MBR:
Before you begin:
- Make sure you have a backup of all your important data.
- Make sure you have a Windows installation media such as a DVD or USB drive.
Step 1: Boot from Windows installation media
- Insert the Windows installation media into your computer's DVD drive or USB port.
- Restart your computer and boot from the Windows installation media.
- Press any key when prompted to start the installation process.
Step 2: Open Command Prompt
- On the "Install Windows" screen, select your language and other preferences.
- Click "Next."
- Click "Install now."
- Accept the license terms and click "Next."
- On the "Which type of installation do you want?" screen, select "Custom: Install Windows only."
- On the "Where do you want to install Windows?" screen, click "Drive options (advanced)."
- Click the partition that you want to convert from GPT to MBR.
- Click "Delete" to delete the partition.
- Click "OK" to confirm the deletion.
- Repeat steps 7-9 for all other partitions on the disk.
- Click "New" to create a new partition.
- Specify the partition size and click "Apply."
- Wait for Windows to create the partition and click "Next" to continue the installation.
- Click "Install now."
- When prompted to restart your computer, click "Restart now."
Step 3: Open Command Prompt
- Boot from the Windows installation media again.
- On the "Install Windows" screen, select your language and other preferences.
- Click "Next."
- Click "Repair your computer."
- Click "Troubleshoot."
- Click "Command Prompt."
Step 4: Convert GPT to MBR
- In the Command Prompt window, type "diskpart" and press "Enter."
- Type "list disk" and press "Enter" to display a list of all disks in your computer.
- Identify the disk that you want to convert from GPT to MBR.
- Type "select disk <disk number>" and press "Enter."
- Type "clean" and press "Enter" to erase all data on the disk.
- Type "convert mbr" and press "Enter" to convert the disk from GPT to MBR format.
- Type "exit" and press "Enter" to close the diskpart utility.
- Type "exit" and press "Enter" to close the Command Prompt window.
- Restart your computer.
Step 5: Reinstall Windows
- Boot from the Windows installation media again.
- Follow the prompts to install Windows on the newly converted MBR disk.
- When prompted, select the newly created partition for the installation.
- Wait for Windows to install and configure itself.
- Install any necessary device drivers and software for your hardware.
- Restore your backed-up data to your newly installed Windows operating system.
That's it! You've successfully converted your hard disk drive partitions from GPT to MBR format.
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