Microsoft is planning to test the Copilot chatbot in an update to the widely used Windows 10 operating system.

The company started rolling out an update that features Copilot to Windows 11, its latest operating system, on Oct. 31.

Among Windows PCs, Windows 11 has about 27% share, and Windows 10 leads with about 68%, according to StatCounter estimates.

 Copilot employs generative artificial intelligence, which counts on large language models trained on web data to create images, audio, and text with a few words of human instruction.

The chatbots can answer questions, summarize documents, and compose email drafts.

Microsoft is taking a careful approach to deploying Copilot in Windows, compared with the Bing search engine, Edge browser, and Dynamics business software.

Microsoft wants to determine how Copilot on Windows 10 may differ from Windows 11 and will find ways to boost quality and performance.

Microsoft wants to determine how Copilot on Windows 10 may differ from Windows 11 and will find ways to boost quality and performance.

Once Copilot has arrived, a new button will show up on the right side of the Windows taskbar.