In December 2025, Microsoft rolled out at least four preview builds for Windows 11, rolling out a bunch of new features and changes, including Model Context Protocol (MCP), Update Orchestration Platform (UOP), Xbox Full Screen Experience for PCs, Ask Copilot, AI agents for Taskbar, Agent Launchers, and a lot more, and here's all you need to know.Screenshots of the latest Windows 11 Insider builds for December 2025.

On Windows 11, you can reduce RAM usage by limiting startup apps, background services, browser load, and system overhead, and in this guide, I'll show you how.Windows 11 PC with low memory usage