I was given windows 95,98,XP,Vista,7,8,and servers 2008r2 and 2012 from itt tech dreamspark. The college went bankrupt and about a year later I needed to reformat but now no matter which version I try to activate they all say invalid and even when Microsoft force activates them I can't download service packs . Microsoft says I have a multi user key which is correct but why won't it activate without them forcing it and why do they tell me it's Enterprise edition even though the iso says it's prox64? (Sorry about grammar and punctuation I'm on a phone.)