I have an MSI WS60, originally running Win10Pro, now dual-boot with Win7Ult. I downloaded Norton Security Deluxe today to the original C partition (Win10-1607), and hit a problem when I tried to "add a device," my Lollipop Galaxy Core Prime. After searching your site, I turned off the fast boot, and still have the same issue. I also want to secure my F partition (Win7). I do believe that I have to download a second copy of NSD to Win7 Programs x86. Any help would be deeply appreciated. Thanks Rusty