Windows cannot be installed to this disk

MBR and GPT are two formats of the hard disk. MBR is the abbreviation of master bootable record, whereas GPT is an abbreviation of GUID partition table. In order to boot Windows from GPT, the motherboard of the device should support UEFI, else, it is better to use MBR to boot from.

The selected disk is of the GPT partition style

When installing Windows on UEFI-based PCs using Windows Setup, your hard drive partition style must be set up to support either UEFI mode or legacy BIOS-compatibility mode. You receive such an error because your PC is booted in UEFI mode, but your hard drive is not configured for UEFI mode. You’ve got a few options:

Wipe a drive and convert to MBR

Open an elevated command prompt window and type diskpart and hit Enter. Next, type list disk and hit Enter. The list of disks will be displayed. Select the disk and type the following command and hit Enter, replacing x with the number of your disk you want to clean. The disk will have GPT marked against it. The disk will be selected

Next, type clean and hit Enter. Do NOTE that, once you enter this command, all data on the disk will be lost, so if you need to, take backups of your data. You will now have to convert GPT to MBR using Diskpart. Moreover, if you cannot afford to clean the entire disk or wipe your data, you may want to make use of the following third-party software that lets you convert GPT to MBR easily.

Aomei Partition Assistant will let you convert GPT to MBR for a particular drive only. You can use it to process the drive on which you plan to install Windows 10, and which is giving you the trouble. This post shows how to convert MBR to GPT using Diskpart as well Partition Assistant. The process to convert GPT to MBR is the same as given in this post, except that you have to make the necessary changes, like use convert mbr command for diskpart, or select the Convert to MBR/GPT option in Partition Assistant. If you receive the message, Windows cannot be installed to this disk. The selected disk is not of the GPT partition style, then this TechNet post titled Windows Setup Installing using the MBR or GPT partition style will help you. You will have to convert MBR to GPT. PS: Please also read the comment by DJ Coderson below. This post will help you if you receive Windows cannot format this drive, Quit any disk utilities or other programs that are using this drive message.

Windows cannot be installed to this disk  Disk is of the GPT style - 81