My brother just texted me about his attempts to install Windows 10. First malfunction was it ate his antivirus software...Viper..and screwed up his OS. He found a Win10 compatible Viper, installed it, but his system is definitely not working well. Also, he's noticed several of his games are no longer functioning. He loves strategy type multi-player games and is pretty good at them. Soooo, a few more reasons to stay away from Win10. Kajun
Moved to technical -- If I understand all I think I know, any games not included in W or from outside sources will be lost. Likewise, any AV stuff not included in W can and most likely will be lost. Finding W10 compatibles is one of the things I need to do before the free upgrade gets initiated. @sec_monkey