That disk is empty. You will need to re-install.
Boot with the Installation Media.
Run Setup
When you get to the screen that asks for language, press Shift + F10 (or the Applications/Context Menu key if your keyboard has it) to open a Command Prompt Type the following commands:
diskpart (you will likely get a UAC prompt for diskpart, answer, “Yes,” of course)
list disk
select disk 0
clean or clean all Purges the disk of all existing partitions
convert gpt Initializes the disk as GPT required for booting on a UEFI motherboard. If you get an error ignore it.
exit (to close diskpart)
exit (to close Command Prompt
The install will now continue; answer any prompts appropriately. When you get to the screen asking on which disk you wish install Windows, activate the Next button. The Windows installer will automatically partition and format the drive (using the boot type you previously specified in the convert command above if you needed to perform Step 4, otherwise it will figure things out as part of the install to an uninitialized drive based upon the hardware configuration you have).