I have Windows 10 installed on a HDD and is activated using an OEM key, due to it being a retail Asus PC. Now, my issue is that I want to do a completely fresh install of Windows on an SSD and I have no product key due to it being a retail PC. My question is, will the fresh install activate due to the OEM motherboard or am I out of luck. As far as I'm aware you can't retrieve the OEM key and then use that to do a fresh install. Any help is appreciated, cheers.