Microsoft has announced the end of support for the Microsoft Store version of Microsoft 365 Apps. Support for this installation type will cease, with new feature updates ending in October 2025 and security updates concluding in December 2026. Users with the Store installation must upgrade to the Click-to-Run installation type. The Store installation uses Appx packaging and aligns updates with Windows Update, resulting in slower feature rollouts, while Click-to-Run allows for faster updates and better enterprise management. The transition to Click-to-Run is necessary due to limitations in the Store installation, including a lack of support for XML configuration and essential enterprise management tools. Users can check their installation type through the Account section of any Microsoft 365 app. Transitioning to Click-to-Run involves downloading the Office Deployment Tool, which will automatically remove the Store version and reinstall Office using Click-to-Run. IT administrators can also use the Office Deployment Tool for automatic transitions across multiple devices.