Microsoft has identified an issue affecting Microsoft Teams and the new Outlook for Windows on Arm-based devices, such as the Surface Pro 11 and Surface Laptop 7, following the installation of Windows security updates released on or after August 11, 2026, specifically the KB5121003 update. The affected Windows 11 versions include 24H2, 25H2, and 26H1, causing these applications to fail to launch or close unexpectedly, while classic applications like Outlook, Word, and Excel remain unaffected. The issue is more prevalent on new or freshly imaged PCs that have not received updates from the Microsoft Store. Microsoft is working on a solution to be included in a future Windows update. In the meantime, users can mitigate the issue by updating to the latest version of the Auto Super Resolution Package (version 1.0.19.0 or later) via the Microsoft Store.