As discussed previously, numerous gamers who installed the Windows 11 August update reported a range of gaming issues – visual glitches, stuttering, crashes, and even unexpected system restarts. Microsoft has already launched an investigation into that problem. Now, however, users have identified an entirely separate issue: Microsoft Outlook and Microsoft Teams failing to launch altogether.
Arm64 Devices Bear the Brunt of the Bug
The devices affected are primarily those running Arm-based chips – specifically, machines running Windows 11 on Arm. The applications experiencing problems are chiefly Microsoft’s newer generation of apps built around the WebView2 Runtime, including the new Outlook and Microsoft Teams. What these applications share in common is their MSIX/AppX packaging format.
Traditional Win32 software, by contrast, remains entirely unaffected. The classic Win32-based version of Outlook, for instance, continues launching and functioning normally. It is the very applications Microsoft has been actively promoting as its modern flagship replacements that are now broken – a fittingly dark irony, all things considered.
Uninstalling the Update Restores Functionality
Some users have already attempted uninstalling and reinstalling the affected apps, running DISM or SFC scans to repair the system, and even performing a complete system reinstall. Yet as long as the August update remains installed, the new Outlook and Microsoft Teams simply refuse to launch. According to a Neowin report, Microsoft has not yet issued any statement acknowledging or investigating this particular issue.
For most users, the simplest workaround remains uninstalling the August update entirely – functionality is restored the moment it’s removed. For enterprises, however, uninstalling updates isn’t always a straightforward option, given the compliance considerations often involved. IT administrators are advised to contact Microsoft as soon as possible to report the issue and press for a prompt fix.
Support Our Threat Intelligence
If you find our technology report and cybersecurity news helpful, consider supporting our work.
Buy Me a Coffee
PayPal
