Hi MDL community, I thank in advance for the replies, I'm n00b at these things, i need a link to download windows 8.1 pro iso or esd that will work with kmspico, now my confusion is, are these windows 8.1 isos/esds require windows 8 to be installed already? I mean, are these files full windows 8.1 or just 8.1 update, to confuse me further i came across some "windows 8.1 pro update 1" iso/esd files, i saw 2 main threads with ESD format and another with MSDN iso files, are they same? are they "FULL" windows 8.1? why esd files are smaller in size if they are same? compression? please guide me, I just want windows 8.1 pro in my pc. remember I don't have windows 8 already, i'm on 7. i need a "complete" iso/esd that can be used with kmspico . thnks