Microsoft is addressing an issue affecting users of Microsoft Teams and the new Outlook on ARM-based Windows devices, specifically the Surface Laptop 7 and Surface Pro 11, following updates released since the August 2026 Patch Tuesday. Users may experience crashes and launch failures after installing security updates from August 11, 2026, particularly update KB5121003. This issue primarily affects newly set up or freshly imaged PCs that lack the latest Microsoft Store updates, while classic Outlook, Word, Excel, and other applications remain unaffected. Microsoft recommends updating the Auto Super Resolution Package as a temporary workaround. A permanent fix is being developed and will be included in a future Windows update. Additionally, Microsoft has acknowledged other issues stemming from the August updates, including problems with printing and PDF exports in certain applications, and has been rolling out fixes for system crashes and gaming problems linked to peripherals with built-in RGB lighting. Customers are also advised to disregard alerts about Microsoft Defender Antivirus being disabled after the latest updates.