Patrick Domingues

If you’ve tried running New Outlook or Microsoft Teams on an ARM64 computer, you may have hit a frustrating wall: the app keeps asking for WebView2, even if it’s already installed. This bug has been plaguing Windows on ARM users recently, and it can completely stop productivity apps in their tracks. In this guide, we’ll break down what’s happening, why ARM64 systems are affected, and—most importantly—how you can fix WebView2 issues on ARM64 that are effecting Outlook and Teams.

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Why WebView2 Matters for Outlook and Teams

WebView2 is the embedded browser control that lets apps like Outlook and Teams render modern web content inside a desktop app. Instead of building their own browser engine, Microsoft apps lean on Edge Chromium via WebView2.

On x64 and x86 systems, WebView2 runs smoothly. But ARM64 is different—applications need the ARM64 DLLs, and when they’re missing or replaced by x64 builds, apps like Teams and Outlook fail to load.

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Symptoms You’ll See

• Outlook or Teams repeatedly prompts:
  “Please install Microsoft Edge WebView2 Runtime.”
• Even after installing WebView2, the error doesn’t go away.
• On some ARM devices, Edge/WebView2 updates to an x64 build, breaking ARM compatibility.
• Certain Edge versions (like 132.0.2957.127) are missing the EmbeddedBrowserWebView.dll file in the ARM64 folder.

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The Fixes That Work

1. Manual DLL Injection (Quick Fix)

If you need a fast workaround:

1. Download the ARM64 WebView2 runtime.
2. Extract EmbeddedBrowserWebView.dll.
3. Create the folder: C:\Program Files (x86)\Microsoft\Edge\Application\<version>\EBWebView\arm64\
4. Drop the DLL inside.

Now Teams/Outlook should launch normally.

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2. Scripted Removal & Reinstall (Cleaner Fix)

For sysadmins or IT pros, a better approach:

• Uninstall Teams and remove any x64 WebView2 remnants.
• Use a PowerShell tool like Remove-MS-Edge.
• Reinstall the ARM64 WebView2 runtime directly from Microsoft.
• Then reinstall Teams or Outlook so they bind to the correct runtime.

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3. Per-User Installation (Often Overlooked)

Some apps only detect WebView2 if it’s installed per user, not just system-wide.

• Sign in as the user having trouble.
• Run the WebView2 installer again under that account.
• Relaunch Teams/Outlook and the error loop usually disappears.

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Best Practices to Prevent This

• Distribute WebView2 properly:
  • Evergreen Runtime: auto-updates for most users.
  • Fixed Version: for enterprises that want control.
• Always deploy the ARM64 version on ARM hardware.
• Use RMM or Intune policies that prevent cross-architecture installs.
• Add diagnostic checks—if a mismatch occurs, script a repair automatically.

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Looking Ahead

Microsoft has acknowledged these WebView2 bugs on GitHub and sysadmin forums. Patches are expected in future builds, but for now, IT teams need to know the workarounds. If you’re running ARM hardware in production, this fix should be part of your troubleshooting playbook.

Frequently Asked Questions

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Final Thoughts

WebView2 is the glue holding Outlook and Teams together—but on ARM64, it’s been fragile. With the fixes above, you can restore stability and keep your workflows running.

At Zevonix, we specialize in solving exactly these kinds of IT headaches. If your business is adopting ARM64 hardware or moving to the new Outlook and Teams, we can help ensure a smooth transition.