Microsoft will force-install the Microsoft 365 Copilot app on Windows PCs that already have Microsoft 365 desktop applications, the company said, with a phased rollout beginning in October 2025 and expected to finish by mid-November. The installation will be applied globally outside the European Economic Area and the Copilot app will be added to the Start menu and enabled by default, though visibility may vary depending on an individual system's configuration. Microsoft advised IT administrators to prepare support teams and notify users ahead of the change to reduce confusion and help desk volume. Organizations can prevent automatic installation by changing the setting in the Microsoft 365 Apps admin center under Device Configuration, but most personal users who manage their own machines will lack a straightforward opt-out pathway.

Admins can disable the automatic installation setting in the Apps admin center to preserve existing deployment policies and image configurations immediately available. The forced-installation move is Microsoft's way of forcing its own AI solution across its productivity suite, following recent integrations of Copilot features into Edge and subscription tiers that expanded access to paid AI tools. Centralizing Copilot could lower the barrier to entry for users who could need prompt-driven assistance inside Word, Excel, and PowerPoint, potentially speeding up repetitive tasks. For those opposed, practical solutions include removing the app post-installation, altering startup behavior, or avoiding Microsoft 365 services, though each option has trade-offs.