THE EMPIRE REBOOTS

Over the last decade, as the biggest force in tech history hurtled toward irrelevance (albeit lucratively), a few blamed Microsoft’ s woes on founder Bill Gates, while most pointed to his successor as C.E.O., Steve Ballmer. Bethany McLean charts the breakdown of their relationship, the growing dissatisfaction with Ballmer, and the challenges and opportunities facing its third C.E.O., Satya Nadella, as Gates returns to the fold.