Microsoft Teams, Outlook fail to launch on ARM-based Windows PCs
Microsoft is working to fix a known issue that causes crashes and launch failures for Microsoft Teams and New Outlook users after installing updates released.
By Dillip Chowdary • Sep 03, 2026 • Source: BleepingComputer
What happened
Microsoft has acknowledged a disruptive technical issue affecting enterprise users on ARM-based Windows personal computers, where both Microsoft Teams and the new Outlook client fail to launch or crash immediately after starting. The regression is linked directly to security and quality updates released during and after the August 2026 Patch Tuesday cycle, leaving affected devices unable to run these critical productivity applications.
How it works
This article details the underlying mechanisms of the application failures, identifies
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Why it matters
These issues affect only ARM-based Windows devices like the Surface Laptop 7 and Surface Pro 11 that run Windows 11 24H2 or later, and they mainly impact users who haven't installed Microsoft Store updates yet. "Classic Outlook, Word, Excel, and other applications are not known to be affected.
Who is affected
According to Microsoft, this package enables Copilot+ PCs to use AI to make gameplay smoother. To do that, users have to open the Microsoft Store, go to Downloads > Check for updates, and install Auto Super Resolution Package version 1.0.19.0 or later.
What to watch next
Microsoft says that it's now working on a permanent fix for this issue, which will be released with a future Windows update. See the full write-up from BleepingComputer via the source link for quotes and complete context.
Developer Action Items
- ☐ Diff the official changelog for Microsoft / Copilot / Windows 1.0.19.0 before you bump — APIs, defaults, and removed flags only.
- ☐ Install through the vendor's documented channel in staging; keep a one-command rollback and time-box the canary.
- ☐ Grep your repo for old flag names, lockfile pins, and plugin versions that the notes mark as breaking.
- ☐ Prefer the first patch cut over the day-zero tag unless you have a reason to be on the leading edge.
- ☐ If BleepingComputer did not name a region, plan, or SKU, screenshot the official availability line before you promise it to users.
Author
Dillip Chowdary
Writes Tech Bytes coverage of AI, engineering, and the tools that actually ship. Editor of Tech Pulse Daily.
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