The error message “Windows cannot be installed to this disk. The selected disk is of the GPT partition style” appears when the computer is set to old BIOS mode. Still, the hard drive you choose to install the operating system on is GPT partitioning. Some older motherboards support Legacy BIOS instead of Legacy + UEFI / CSM Boot.
The cause of error
- The hard drive is in GPT structure, but the machine has BIOS (Legacy) Boot mode.
- The hard drive is in GPT structure and the machine has UEFI Boot mode but has installed Windows on the BIOS (Legacy) system Boot the MBR hard drive before.
- You boot the USB from the Legacy Boot structure instead of choosing UEFI Boot.
From here, you can see that due to a mistake in installing a BIOS-enabled computer with a GPT partition, the “Windows cannot be installed to this disk” error.
How to fix Windows cannot be installed to this disk
Please note that the first way will erase your hard drive before converting GPT to MBR format, so please backup your data. If you do not want to lose data, you can use the second way to convert GPT to MBR.
Step 1: At the screen where the error “Windows cannot be installed to this disk” appears when installing the operating system, press Shift + F10 to open Command Prompt. If that doesn’t work, go back to the first setting screen and press Shift + F10.
Step 2: Type diskpart in Command Prompt and press Enter.
Step 3: Continue to enter the command list disk and press Enter, it will display the entire hard drive available on the computer.
Step 4: Type select disk # then press Enter. Where # is the drive number being formatted as a GPT partition.
Step 5: Type Clean and press Enter. This command will delete the partition and all data in the selected hard drive.
Step 6: Finally, type convert mbr and press Enter. This command will change the hard drive partition to MBR. You can exit the Command Prompt window when you see the message “DiskPart successfully converted selected disk to MBR format“.
See more: How To Use Diskpart Windows 10
This method will require you to use a disk management software called Eassos DiskGenius to convert GPT to MBR format. Thanks to this software, you can freely convert partitions without worrying about losing data.
Step 1: Download and install DiskGenius application.
Step 2: Select the drive you want to convert, click the Disk menu and choose to Convert to MBR Partition Table.
Step 3: Click OK when DiskGenius asks you to confirm.
Step 4: Click Save All from the toolbar to save all changes.
Step 5: Try reinstalling your Windows and see if the error still appears.
Using UEFI Boot
This method is not popular with the two ways above because not all computers have firmware compatible with UEFI and BIOS. However, most desktops and laptops today running Windows 10 have boards that support UEFI and BIOS. So when you get the error “Windows cannot be installed to this disk the selected disk is of the GPT partition style” is sure that some of your computers are using the old-generation BIOS, so switch to using UEFI Boot according to the instructions below.
Step 1: Proceed to turn off your computer.
Step 2: Power on your computer. When the logo appears, open the BIOS by pressing one of the Esc, Delete, F1, F2, F10, F11, or F12 keys. However, when the computer is turned on, the computer will also display the key to enter the BIOS.
Step 3: Use the right/left arrows to move to select the Boot tab.
Step 4: In the UEFI/BIOS Boot Mode, press Enter.
Step 5: Click the down arrow to select UEFI.
Step 6: Press the F10 key to save. Now install your Windows as you normally would.
See more: How To Change the Boot Order In BIOS
So through this article, you already know the cause as well as how to fix the error” Windows cannot be installed to this disk the selected disk is of the GPT partition style” right? Hopefully, this article will help you. Good luck.