I am about to upfrade my 'puter and that includes a NEW Mobo, GA k7 Gaming, but now I am very concerned because I hadn't realized that I may have to now pay probably around $100 more for a W10 OS, because the one I am using is a FREE Upgrade from my previous OS, W7, ..... Please tell me/us what ur experience was when u upgraded a mobo when u too had the free W10 upgrade installed......THANKS!