Tip: Are you a non-native English speaker? I have just finished creating a 
Web App for people who enjoy learning by reading. Make sure to check it out; there's a lot of free content.
Alternatively, the user might think of using key generators. But I know that key generators are usually pirated tools that create fake activation keys, which is against the software's license terms. That's definitely something I can't recommend. Instead, I should focus on guiding them to official sources.
By the way, have you already seen my brand new web app for non-native speakers of English? It's based on reading texts and learning by having all meanings, pronunciations, grammar forms etc. easily accessible. It looks like this:
