Hi all, I got my laptop around 18 odd months ago and the performance has dropped lately because of the hdd speed. I have 2 hdd, 1TB each, I want to install Samsung 850 EVO 500GB 2.5-Inch SATA III Internal SSD as C: and add the current Windows drive in the second slot and keep the third HDD for external usage. Which slot will the SSD need to go into so that I can install fresh Windows 10 on it?