Hello, I've followed many links to this site for downloading legal Windows 7 ISOs: http://www.w7forums.com/threads/official-windows-7-sp1-iso-image-downloads.12325/ I read they are the official ISOs hosted by Digital River. I also read Digital River hosts the content for Microsoft's online stores. I understand they are legal because they do not come with a key. I'll be using a key that I bought. So are the downloads safe and legit? I don't want any malware! Thanks.