Microsoft is addressing a critical issue where Microsoft Teams and the new Outlook are crashing or failing to launch on ARM-based Windows devices following recent security updates.

  • Affected devices include Surface Laptop 7 and Surface Pro 11 running Windows 11 24H2 or later.
  • The issue stems from Windows security updates released on or after August 11, 2026 (KB5121003).
  • A temporary fix involves updating the 'Auto Super Resolution Package' via Microsoft Store.

Microsoft has officially acknowledged a widespread issue causing Microsoft Teams and the new Outlook for Windows to crash or fail to launch on ARM-based devices. This technical glitch specifically targets high-end hardware such as the Surface Laptop 7 and Surface Pro 11, which operate on the Windows 11 24H2 architecture or newer.

According to a Windows release health update, the problem emerged following the installation of security updates released on or after August 11, 2026 (KB5121003). Microsoft noted that this issue is most prevalent on new or freshly imaged PCs that have not yet synchronized with Microsoft Store updates.

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Why This Matters

BozokMedia analysis shows that as Microsoft pushes more heavily into the ARM-based ecosystem with its Copilot+ PC initiative, software stability on these specific architectures becomes paramount. A failure in core productivity tools like Teams and Outlook can lead to significant downtime for enterprise users transitioning to these efficient chips.

Software-hardware synergy is critical for ARM architecture; even minor update discrepancies can disrupt essential productivity suites.

While Microsoft has not yet disclosed the exact root cause, they have provided a workaround. Users are advised to open the Microsoft Store, navigate to Downloads > Check for updates, and ensure the Auto Super Resolution Package is updated to version 1.0.19.0 or higher. This package, designed to enhance AI-driven gaming smoothness, appears to mitigate the launch failures in the interim.

Historical Background

The month of August 2026 has been particularly turbulent for Microsoft's software stability. Recent weeks saw .NET Framework updates breaking printing and PDF export functionalities. Additionally, the company recently addressed system crashes caused by peripherals with built-in RGB lighting, which triggered EXCEPTION_ACCESS_VIOLATION errors on Windows 11 devices.

Did You Know?: ARM-based Windows PCs are specifically designed to offer significantly longer battery life compared to traditional x86-based laptops.

Frequently Asked Questions

Question 1: Are Microsoft Word and Excel also affected?
No, Microsoft has confirmed that Classic Outlook, Word, Excel, and other standard applications are not known to be affected by this specific bug.

Question 2: When will a permanent fix be available?
Microsoft is currently working on a permanent resolution which will be deployed through a future Windows cumulative update.