Welcome to the Community, @ELAEL_!
Since you will be clean installing Windows onto the SSD, I'd strongly recommend you unplug the secondary hard drive from the system, until the installation has completed. This will avoid the potential OS Confusion that occurs when you have more than 1 destination SATA device connected to the motherboard.
During the Windows installation process, you will be given the option to re-format the SSD. There's no way to do it through the BIOS interface.
If you need more detailed step-by-step instructions, I'd recommend you check this tutorial on
Windows Install & Optimization for SSDs & HDDs.
Hope it helps you! Keep me posted if you have more questions!
SuperSoph_WD