Last week Microsoft tweeted a teaser introducing the all-new Windows 1.0. With the third season of Stranger Things looming, we speculated that it was a crossover promotion. Tweets continued from Microsoft that hinted that this was true, including one that showed Windows 1.0 running on a retro computer and rats crawling behind it (no spoilers here, just watch the show).
The tweets also contained snippets of Morse code referring to July 8.