I am trying to reinstall windows on a new m.2 drive that I have and I cannot locate my product key. I bought a physical copy from best buy and it is on a flash drive, but I lost the box and am trying to locate the key. I seem to remember years back being able to look in my computer "properties" and the product key being listed but that was during the days of windows XP. It can't be found there now. Does anyone out there know of where or how I can find my windows product key?