Microsoft has begun rolling out a floating Copilot button in Microsoft 365 Excel, and it's already stirring significant backlash. The button, designed to give users quick access to AI features, sits persistently in the bottom-right corner of worksheets—and early adopters are discovering there's no way to completely remove it.

The New Copilot Button: What It Is and Where It Sits

The floating button is part of Microsoft's broader push to weave Copilot AI into every corner of its Office suite. In Excel, the button is meant to let users prompt Copilot to generate formulas, analyze data, or suggest insights without opening a separate pane. It's positioned in the lower-right corner of the worksheet grid, floating above cell content and overlapping the scrollbar area.

Microsoft is delivering the change through a server-side update to Microsoft 365 subscribers, meaning users won't find a specific version number to avoid. The rollout appears gradual, with some users seeing the button appear in closed or expanded states, while others report an intermittent presence that disappears only to return after a restart.

The Core Grievance: You Can't Make It Go Away

According to dozens of complaints on Microsoft's feedback portal and community forums, the button cannot be fully hidden. While Excel provides an option to collapse it into a smaller semicircle, there is no setting to disable or remove it entirely. The collapsed state still occupies space and can obscure the contents of cells in the bottom rows, especially on smaller screens or when working with dense spreadsheets.

\"The Copilot button is covering my data, and there is no off switch,\" wrote one user on Microsoft's feedback hub. Another said, \"I can't place critical numbers at the bottom of my sheet anymore because the button sits right on top of them. This is a dealbreaker for financial modeling.\"

A thread on the Microsoft Tech Community has garnered dozens of upvotes, with users calling the persistent button \"intrusive,\" \"a needless distraction,\" and \"UI clutter.\" The inability to turn off an AI assistant that some users may not even be licensed to use—since Copilot requires a separate subscription on top of Microsoft 365—adds to the frustration.

How the Button Behaves—and Misbehaves

Users describe several behaviors that compound the annoyance:

  • Overlapping content: The button sits above the grid layer, so it can hide data in the last visible rows. Scrolling to bring those cells into view means the button moves with the viewport, often just covering the same relative position.
  • Accidental activation: Clicking the button expands the Copilot pane even when users don't want it, interrupting workflow.
  • No persistence of collapse state: Some report that collapsing the button doesn't stick between sessions; it re-expands after closing and reopening Excel.
  • Scrollbar interference: In the collapsed state, the button sits atop the vertical scrollbar, making precise scrolling difficult with a mouse.

User Workarounds—None Official or Perfect

In the absence of a Microsoft-provided off switch, users have improvised. Some suggest dragging the Excel window partially off-screen so the button falls outside the visible area, but that's impractical for multi-monitor setups or precise work. Others tried editing registry keys or group policies that control the Office AI experience, but reports indicate these have no effect on the floating button specifically.

A widely shared workaround involves disabling the \"Show analysis\" option in Excel's advanced settings, but this removes useful features like cell analysis and doesn't remove the button from the interface—it only disables some Copilot functionality. As one power user summarized: \"There is no clean registry hack; we're forced to live with this.