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
You see the error message File Type Not Supported when you try to upload a document to Copilot in Microsoft 365 Chat or Copilot in Word. This error occurs because Copilot can only process a specific set of file formats for grounding and content generation. The file you are uploading uses an extension or encoding … Read more
You are working in Word when Copilot suddenly stops responding, the pane freezes, or the plugin crashes repeatedly in a loop. This crash loop prevents you from using any Copilot features, including drafting, rewriting, or summarizing content. The issue usually stems from a corrupted plugin state, conflicting add-ins, or a damaged Word settings file. This … Read more