Microsoft History & Founding Timeline

Microsoft's decade-long attempt to compete in smartphones — from Windows Mobile in 2000 through the $7.2 billion Nokia acquisition in 2014 that was written down almost entirely within two years — consumed tens of billions in capital and management attention while ceding the mobile computing platform to Apple and Google, a failure whose consequences in consumer software distribution and app ecosystem development persist today.

Having achieved 95-plus percent browser market share in 2003 through the Netscape antitrust strategy, Microsoft starved Internet Explorer of development investment through the mid-2000s, enabling Firefox and subsequently Chrome to establish developer and consumer preference that made the browser the delivery mechanism for Google's cloud services expansion — a competitive defeat that required the Edge browser rebuild from 2019 onward to partially recover.

Despite Microsoft Research developing cloud computing concepts through the 2000s, the Ballmer-era organization's financial dependency on Windows and Office perpetual license revenue created institutional resistance to investing in cloud services that would cannibalize existing high-margin product lines, providing Amazon Web Services a three-to-four year head start that Azure has never fully closed in market share terms.

Multiple high-profile security incidents — including the SolarWinds supply chain attack in 2020 and the Chinese state-sponsored government email breach in 2023 — revealed that Microsoft's security investment had not kept pace with its infrastructure centrality, resulting in a Cyber Safety Review Board report that accused Microsoft of a security culture that prioritized feature velocity over security rigor, damaging trust with government customers who place existential dependency on Microsoft infrastructure.