I've heard mixed info about "free". Even on microsoft's site info is released and removed. One mention was "Free...for the first year. I went from Vista-WIN7 release candidate- Win7 Retail - Win8 release candidate- back to WIn7 Win10 Technical Preview 3 weeks now- Not happy. Maybe optional themes won't look like another reviewer put "Fisher Price" design. Also right clicking to enter the control panel separate from the "start menu" "settings" Spartan/edge/IE12 is ugly Chrome promoted to be be default browser, clicked yes, WIN10 prompted you have to go into settings/ default apps for that. Programs folder is now apps Apps are in alphabetical order with huge A B C titled sections Will Stick with Win7 or to a Linux Distro but they've all had a deal breaker or 2 in the past. Calculator is full butt ugly theres no contrast. Browser tabs, explorer windows all match the theme floating snippets of text with nothing that looks like a button Cortana pops up occasionally due to trackpad swipe gesture? or something There's no Demo it's a full install. I bought a new SSD to install it on. Sleep is quirky not sure if it's Win10 or the SSD or Dell bios bit win7 on a std hdd was fine I was waiting to buy a new computer not so excited now.