Microsoft’s push to make Copilot the default way people interact with Windows and Microsoft 365 has reached a tipping point: what began as a sales and product play is now a flashpoint for user frustration, privacy questions, and an intensified regulatory spotlight that could reshape how major software platforms bundle AI features into operating systems and productivity suites. rosoft announced Copilot as the centerpiece of an "AI-first" era—an assistant that can answer questions, summarize...