Official documentation checked October 14, 2026. A Copilot “500 Internal Server Error” needs a service and scope check before local resets. If 500 is the actual HTTP response status, it indicates an unexpected server-side condition. It does not identify the affected component, establish a Microsoft-wide outage, or promise recovery within a fixed number of minutes. … Read more
You ask Copilot a work question inside Microsoft 365 apps. It replies with a generic refusal: I cannot help with that. This happens even when the request is valid and within your organization’s data policies. The root cause is often a mismatch between Copilot’s grounding configuration and the data source you are trying to query. … Read more
When you chat with Copilot in Microsoft 365 apps, the assistant may forget what you said a few messages ago. This happens because Copilot has a limited context window that resets after a certain number of turns. The context window is the amount of recent conversation history the model can reference at once. This article … Read more
Official documentation checked October 14, 2026. “File Type Not Supported” needs the exact Copilot experience, account, upload method, and file. Microsoft publishes different format lists for conversation attachments, Microsoft 365 app workflows, and Notebook references. A format accepted in one workflow is not automatically accepted everywhere. Keep the original file. Check the applicable format and … Read more
Official documentation checked October 14, 2026. If Word closes repeatedly when you open Copilot, first distinguish a Word application crash from an unresponsive Copilot pane. Microsoft’s Copilot in Word is an integrated Microsoft 365 experience; this guide does not assume it is a separately installed COM “Copilot plugin” that can be uninstalled or reset. A … Read more