Hi
@natzurePlease boot your computer with Windows Setup Media and from Windows Recovery Environment.
If you haven't use Automatic Repair (Startup Repair) if this tool wont work then start the Command Prompt.
Please execute following commands and post a screenshot of the commands outputs.
Code:
Diskpart
List Disk
List Volume
Select Disk X
List Partition
From
List Disk command you will found out disk number assigned to Windows installed storage disk and replace
X with this disk number.