Well 2 out of 3 computers were not a great success upgrading to windows 10 be warned when you upgrade make sure you specify exactly which program files you want win10 to save or you will lose them all with the only way to ever get them back is to use proffesional hard drive recovery software with little chance of success to find everything you lost. For some weird reason on my laptop everything did get saved into win 10.Unfortunately I did lose a valuable photo forever,on the other desktop pc. One further note the new version of kodi for win10 is way different than before it took me an hour how to get the movie plugins working again. While the upgrade does let you have 30 days to go back to win7 ,when I tried that all my valuable pictures and programs were still lost in win7.