Microsoft Build 2026 begins on June 2 at Fort Mason Center in San Francisco, and the agenda telegraphed in pre-event communications points to a single thesis: Windows is being repositioned as the operating layer for AI agents. Satya Nadella's opening keynote is expected to anchor the announcements.
The headline items previewed by Microsoft and ecosystem partners include a Windows Agent Framework — new APIs that embed autonomous agents into the Windows shell, task scheduler, and security model — and Copilot Agent Mode, an autonomous mode for GitHub Copilot capable of running multi-step coding workflows inside VS Code with parallel sub-agents for testing, documentation, security scanning, and code review.
A Windows Agent Store is also expected, framed as a curated marketplace for AI agents that integrate with Windows applications. On the cloud side, Azure AI Foundry is set to formally add Anthropic's Claude alongside OpenAI with full enterprise pricing and SLA support, completing a multi-model lineup that Microsoft has been quietly building since earlier in the year. An AI Foundry for Windows SDK bundling ONNX Runtime, DirectML, and Copilot Runtime is also slated, aimed at on-device AI app development.
The political subtext of the conference is unavoidable. Build follows a month in which enterprise AI cost reckonings dominated headlines, the agentic infrastructure race between AWS, Google, and Azure intensified, and OpenAI's own Codex agent expanded to Windows just days before the keynote. Microsoft needs to convince enterprise buyers that the Windows-plus-Azure-plus-Copilot stack offers governance, predictable pricing, and tool integration that pure-model deployments cannot match.
For developers, the most concrete takeaways will likely be the Windows Agent Framework APIs, the new GitHub Copilot Agent Mode primitives, and the Azure AI Foundry SLA terms for Claude. The keynote will be livestreamed free on Microsoft's Build site, with on-demand recordings to follow.
Source: [Build Fast with AI](https://www.buildfastwithai.com/blogs/ai-news-today-may-30-2026)