Copilot Not Working

How to Fix Incomplete Microsoft Copilot Responses and Missing Features

Maira Mehtab Sep 22, 2026 869 views

Question details

The user is experiencing issues where Microsoft Copilot stops mid-generation, providing truncated answers, and the 'Think Deeper' reasoning option has suddenly disappeared from the interface.

Product: Microsoft Copilot
Device & OS: not provided
Scenario: Using Microsoft Copilot for content generation or deep reasoning tasks.
Observed behavior: Copilot generates incomplete text responses, and the 'Think Deeper' button becomes unavailable even though it was functioning normally earlier in the same day.

Before you start

Before proceeding with troubleshooting, check your internet connection stability and verify if there are any ongoing global service outages on the Microsoft 365 Service Status page.

Solution 1Recommended

Start a New Conversation and Re-authenticate

Resetting your active session is the most effective way to clear temporary server glitches that cause Copilot to drop features or truncate responses.

Microsoft Copilot relies heavily on active session tokens. When these tokens expire or experience backend sync issues, the AI may fail to complete its generation cycle, and advanced options like 'Think Deeper' can temporarily vanish.

Start a new chat

Click the 'New topic' or 'New chat' button in the Copilot interface to wipe the current context and establish a fresh connection to the AI model.

Sign out of your account

Click on your profile picture in the top right corner and select 'Sign out' to completely end your Microsoft session.

Sign back in

Log back into your Microsoft account using your credentials and test Copilot to see if the 'Think Deeper' option has returned.

Quick Tip: If Copilot stops mid-sentence, you can sometimes prompt it with the single word 'Continue' to force it to finish the current thought without restarting the session.

Solution 2

Clear Browser Cache and Session Data

Corrupted or outdated cached data in your browser can interfere with the Copilot web interface, hiding specific buttons.

Solution 3

Report the Issue via Help and Feedback

If the issue persists for several days, it is likely a backend limitation, account flag, or A/B testing change by Microsoft that requires formal reporting.

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Frequently Asked Questions

Why did the 'Think Deeper' option disappear from my Copilot?

This usually happens due to temporary server-side throttling by Microsoft during peak hours, expired session tokens, or backend updates being rolled out. Restarting your session often resolves it.

How can I force Copilot to finish an incomplete response?

If Copilot stops generating mid-sentence without an error code, simply type 'continue' or 'keep going' in the chat box. It will usually pick up exactly where it left off.

Does clearing cache actually fix AI chatbot issues?

Yes. Web-based AI interfaces like Microsoft Copilot rely on cached scripts and cookies. If these become corrupted, UI elements like the 'Think Deeper' button may fail to load properly.

Microsoft Copilot Issues