Windows technical documentation for developers and IT Pros.

Information for Windows application developers, hardware developers, and IT pros.

Application developers

Design, develop, and deploy applications and other solutions for Windows PCs and other devices.

Hardware developers

Design, develop, and deploy hardware and device drivers for Windows PCs and other devices.

Windows client for IT pros

Evaluate, plan, deploy, secure, and manage devices running Windows 10 and Windows 11.

Windows Server for IT pros

Build and deploy connected applications, networks, and web services on Windows Server.

Windows for IoT

Create IoT solutions with secure devices that can be quickly provisioned, easily managed, and seamlessly connected to an overall cloud strategy.

Windows Insider Program

Be the first to see what's next and help shape Windows' future by running Windows 11 and Windows 10 Insider Preview Builds and giving feedback.