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Microsoft Teams and Outlook Face Launch Failures on ARM-based Windows PCs

Guavy AI Editorial Team
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MSFT
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Microsoft Teams and Outlook are experiencing launch failures on ARM-based Windows PCs following recent updates.

The issues affect Surface Laptop 7 and Surface Pro 11 users running Windows 11 24H2 or later, especially those who haven't installed Microsoft Store updates yet.

After installing the August 2026 Patch Tuesday updates, including KB5121003, affected users might encounter crashes or launch failures when trying to open Microsoft Teams or the new Outlook for Windows.

Micro-soft claims that Classic Outlook, Word, Excel, and other applications are not impacted by this issue.

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