Microsoft is reportedly extending its generative AI-powered personal assistant, Copilot, to one billion Windows 10 users. Similar to Windows 11, the update will feature a Copilot button on the Windows 10 taskbar, providing the Copilot sidebar experience. The expansion aims to tap into the untapped market of 1 billion active Windows 10 devices per month compared to 400 million on Windows 11. The update, with an unspecified timeline, will maintain consistency in Copilot's experience and capabilities across both operating systems, with plugins compatible on both. This move aligns with Microsoft's strategy to increase market share and make Copilot accessible to a broader user base. Copilot, initially launched for Windows 11, serves as an AI assistant for laptops, enhancing user experience and productivity. The expansion is seen as a natural progression for Microsoft in reaching a larger audience and ensuring feature parity across Windows versions.