Two months ago Satya Nadella took over as Microsoft's CEO and Thursday he finally invited the media into his world with his first press conference. It's not business as usual at Microsoft. In fact Nadella talked about taking steps previously unheard of at the company, in hopes of returning it to tech dominance. So far, Wall Street likes Nadella's appointment. In the seven weeks since he got the job, Microsoft's stock price has risen more than twelve percent.