關於 Windows 8 內建應用商店的傳聞已近一年，隨著 9 月 BUILD 大會逼近，微軟終於鬆口，首度公開證實 Windows 8 將內建 App Store，由 Windows 部門 App Store 開發小組負責。
Steven Sinofsky 在部落格列出開發小組名稱，進一步印證多項功能：
- App Compatibility and Device Compatibility
- App Store
- Applications and Media Experience
- App Experience
- Core Experience Evolved
- Device Connectivity
- Devices & Networking Experience
- Ecosystem Fundamentals
- Engineer Desktop
- Engineering System
- Enterprise Networking
- Global Experience
- Graphics Platform
- Hardware Developer Experience
- Human Interaction Platform
- Hyper-V
- In Control of Your PC
- Kernel Platform
- Licensing and Deployment
- Media Platform
- Networking Core
- Performance
- Presentation and Composition
- Reliability, Security, and Privacy
- Runtime Experience
- Search, View, and Command
- Security & Identity
- Storage & Files Systems
- Sustained Engineering
- Telemetry
- User-Centered Experience
- Windows Online
- Windows Update
- Wireless and Networking services
- XAML
