Microsoft promised a bold new era for Windows—but years later, many of its most hyped features have quietly stalled, vanished, or failed to impress.

Windows 11’s February 2026 Insider update is live, and it brings a fresh round of new features and changes for testers.

Dark Mode has its drawbacks. For example, the worksheet grid usually remains white. You can choose Black under Office Theme, which activates a Dark Mode toggle in the View tab of your Excel ribbon.