Wednesday, July 8, 2026
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Microsoft patches Outlook crash triggered by Copilot email drafting

2 min read Editorial
  • Status: Resolved
  • Affected App: Microsoft Outlook (Desktop)
  • Issue: Application crash when initiating Copilot for email drafting

If you have been hitting a wall every time you tried to let AI handle your inbox, the frustration is officially over. Microsoft has addressed a persistent stability issue that caused Outlook to unexpectedly close whenever users attempted to use Copilot features for writing emails.

The crash loop is broken

For many professionals relying on Microsoft 365, Copilot in Outlook is meant to streamline communication. Instead of generating drafts or summarizing threads, the application would simply terminate. This made the feature unusable and disrupted workflow for anyone trying to leverage AI assistance.

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Simple interactions like drafting emails should remain stable, allowing users to focus on their workday tasks.

Microsoft confirmed that the root cause has been identified and patched. While specific build numbers were not detailed in the initial report, users on updated versions of Outlook should no longer experience these spontaneous closures when interacting with Copilot prompts.

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What this means for you

If you have been avoiding Copilot due to fear of losing unsaved work or dealing with constant restarts, now is the time to try it again. Ensure your Office suite is fully updated via Microsoft Update Assistant or Windows Update to guarantee you have the latest stability fixes.

This fix restores confidence in the integration between Outlook and AI tools. You can return to using Copilot for drafting responses without worrying about the application crashing mid-sentence.

Source: Neowin

Over to you: Have you noticed improved stability in Outlook after your last update?

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Windows & Microsoft news editor at 9to5Windows. Covering everything from Windows 11 builds to enterprise updates.

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