Windows 11 gets a built-in Copilot and new dev tools

Microsoft is turning Windows into an AI control room.

At its annual Build conference, the company unveiled Windows Copilot for Windows 11 alongside a brand-new Dev Home workspace, effectively embedding Bing Chat and ChatGPT-style assistants directly into the world’s most popular desktop operating system.

A persistent co-pilot on your taskbar

Windows Copilot is designed to sit front and center on the taskbar. Click it, and a persistent sidebar docks along the side of your screen, staying visible across all your running apps and windows.

Instead of just answering trivia or drafting emails, the sidebar integrates directly with Windows features like copy/paste, Snap Assist, and Snipping Tool. You can drag and drop content into the panel to rewrite, summarize, or explain it, or even use natural language to tweak system settings.

Microsoft confirmed that Windows Copilot will roll out in preview for Windows 11 in June, with support for both first-party and third-party Bing Chat plugins.

Hooking developers into the hybrid loop

Microsoft also wants every Windows programmer to become an AI developer. Monthly active Windows devices used for development jumped 24% year-over-year, and Redmond is capitalizing on that momentum.

The company showcased its new Hybrid AI loop powered by ONNX Runtime and Olive, an optimization toolchain. Developers can now write code that automatically splits workloads: running smaller models locally across CPUs, GPUs, and NPUs from Nvidia, AMD, Intel, and Qualcomm, while offloading heavy lifting to Azure cloud endpoints with minimal friction.

For workflow headaches, Microsoft also launched Dev Home in preview, featuring fast machine setup via WinGet, high-performance Dev Drive storage, and unified GitHub dashboard widgets.

Why it matters

We think this is Microsoft’s most aggressive move yet to secure the AI desktop layer before anyone else catches up.

For everyday users, weaving conversational AI into the OS fabric fundamentally changes the utility curve. Having an assistant that can see what is on your screen and adjust local settings without switching context eliminates massive amounts of app fatigue. That said, real-world utility will hinge on how fast and reliable these plugin actions feel outside of polished keynote demos.

For the industry, it sets a formidable standard. By funneling ChatGPT plugins and silicon partnerships into a single Windows side rail, Microsoft is forcing rivals like Apple to rethink the fundamental role of a desktop OS.