Every year or so I do a clean install and every two or three years I do a major hardware upgrade. Between these events I do not much more than maintaining good computer hygene so I forget what I did a year or more ago. I am at the point of a hardware upgrade and since that will include a new mobo (ASUS TUF Z390M Pro) and new CPU (Intel I9-9900K) I will obviously also do a clean install. I forget what I did last year to assure no Windows reactivation problems. I think I just re-entered the product key and somehow MS knew to just reactivate Windows without any farther needs. I just want to know for sure what I need to do before I tear apart a machine I use every day to minimize the time to get it up and running again.