This error message, the selected disk is of a GPT partition style during OS installation is very common in Windows 7/8 and 10. Many windows users reported this error message when they tried to install Windows on their computer. When the error message occurs, the users are no longer able to install Windows OS. When you try to install Windows on your PC, you have to select a partition table that supports either UEFI mode or legacy BIOS compatibility mode. You have to select between the GPT or MBR partition table. The GPT partition supports UEFI mode and the MBR disk supports Legacy BIOS mode. So, when you get the error message while installing the windows, it indicates that your computer is in the GPT partition table and the corresponding UEFI mode is not booted in your PC.
The Selected Disk Is of a GPT Partition
In this article, several methods on solving the error mentioning ‘the selected disk is of a GPT partition style’ will be discussed.
Method 1: Check BIOS Setup.
Step 1: First, you have to reboot the computer.
Step 3: Now, you have to navigate through the BIOS. You can follow the on-screen instruction to go to boot mode. Generally, the boot mode option is found under the boot tab. When you click on boot at the top of the window, you can find the current boot mode which you are in.
Step 4: In this case, you may find the boot mode which you are in is Legacy BIOS. And, you can’t find any option for UEFI. Then, you have to convert the GPT disk partition to an MBR partition table.
Step 5: If you find the option to select UEFI mode or you may find an option of a combination of UEFI/Legacy Boot. Then, you have to select the option and save all the changes you make.
Step 6: Finally, you have to install Windows anywhere on the hard drive.
Method 2: Convert GPT Disk to MBR Using Diskpart
Step 2: Then, you have to open the Command Prompt on your computer. To clear the screen of the command prompt, follow this link. You have to go to the search engine, or Cortana and type cmd in the search bar, and press Enter. From the results, you have to choose the command prompt. You can simply press Shift + F10 to open the command prompt.
Step 3: Once, you open the command prompt, you have to type the following command in the command line:
You have to press Enter after this command.
Then, also type the following there:
Step 4: Now, A window will appear. There, you can see a list of all hard drives which are currently available.
Step 5: Next, you have to choose the drive which you want to install. You have to choose disk 0. If it is not disk 0, you have to select the proper disk.
Step 6: After that, you have to type the command below:
select disk 0 and press Enter.
Then, again type clean and press Enter.
convert MBR and press Enter.
Step 7: Finally, you have to type Exit and close the command prompt.
By following this, the selected disk is of a GPT partition style error can be solved hopefully on any computer if there is no other problem..
Method 3: Convert to MBR Using Disk Management Utility
Step 1: First, you have to go to the search engine and type “Disk Management” and press Enter. From the results, select disk management.
Step 2: If you are using Windows 10, you have to go to the control panel and select Create and Format Hard Disk Partitions. Then, you have to click Disk Management Window. To properly format a USB flash drive, we suggest you follow this informative article. You can also format a write-protected USB drive.
Step 3: In the volume list, you have to find the GPT disk.
Step 4: Now, you have right-clicked on the partitions/volumes on this disk and select Delete. You have to delete all the partitions.
Step 5: When the entire disk is free from allocated space just like extending any partitions. you have to right-click the disk and choose to “convert to MBR disk” from the menu bar.
Stepp 6: Finally, you have to install Windows on this MBR disk.
Method 4: Convert MBR to GPT Without Losing Data
Step 1: First, you have to download the EaseUS Partition Master on your computer. You have to download the free version of the app. Then, you have to launch the software on your Windows computer.
Step 2: Now, you have to right-click on the MBR disk and select “Convert to GPT” from the menu.
Step 3: Now, you have to find the “Execute 1 Operation” button. You may find it on the toolbar of the window. You have to right-click on it and click on “Apply” below.
Step 4: Finally, you have to restart your device to save the changes.
To get more detailed information about converting MBR to GPT without losing data, you can check this amazing article.
Method 5: Reform the Drive
The selected disk is of a GPT partition style error is so common that you will find several technique out there to fic your problem.
Step 2: Now, you have to Boot the PC from the DVD or USB.
Step 3: Next, you have to open the command prompt on your computer. You have to press “Shift + F10” on your keyboard to open the Command Prompt.
Step 4: Once the command prompt opens, you have to type the following command
- list disk
- select disk
- convert gpt
You have o press Enter after each command.
Step 5: After that, you have to close Command Prompt.
Step 6: Finally, you have to try to install Windows again.
Method 6: Boot to UEFI Mode
Step 1: First, you have to shut down your computer.
Step 2: Then, you have to start your PC again. When the system logo appears, you have to press the BIOS key. Generally, the BIOS key is Esc. But, still, you have to check the bios key for your system.
Step 3: Now, you have to press delete, F1, F2, F10, F11, or F12, to enter BIOS. This key will be shown on the screen of your computer.
Step 4: Next, you have to select and enter the “Boot” tab of your window.
Step 5: You have to select UEFI. For this, you can use the down arrow.
Step 6: After that, you have to save the changes and close the BIOS.
Step 7: Finally, you have to try again to install windows. You should delete the Windows update file properly because sometimes, it acts differently on different systems.
Method 7: Convert GPT Disk to MBR with Disk Genius
Step 1: First, you have to download DiskGenius on your computer. You have to download the free version of the app.
Step 2: Then, you have to install the software. It may take a few minutes to install.
Step 3: Once the DiskGenius ones, you have to select the disk which you want to convert into MBR.
Step 4: You have to click menu Disk at the top of the window and then, you have to choose to Convert to MBR Partition Table from the menu bar.
Step 5: Next, DiskGenius asks for confirmation of the operation. You have to click OK then.
Step 6: Then, to save the changes you have made, you have to click Save All button.
Step 7: Finally, to test the error, you should re-install the windows again.
When the installation process is failed like Clean is not allowed on the disk containing the current boot error, you have to check the firmware that your operating system is using. If you face the error message, you have to convert the GPT to an MBR partition disk. There are some methods above to convert the GPT disk. At this point, we think and hope and actually expect that you know how to solve this ‘selected disk is of a GPT partition style’ error