Like when you boot up? In the BIOS? I am pretty green at this...
With SSD's you don't do a full format - it can wear down your drive. What you do is when you insert your Windows disc and the install menus start up, it should display all the drives and when it does just do a quick format - it'll wipe the drive for you.
And when you format the HDD - once Windows is right click on your computer icon, click "manage" then choose "disc management" and it should display all the discs you have available. Right click the disc you want and then select format, pick a drive letter and you're done.