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[Problem/Bug]: Edge/WebView2 Beta 149.0.4022.8 crashes with c0000005 in ntdll.dll, breaking Teams, Outlook, Widgets #5591

@zeptune-SadmIAM

Description

@zeptune-SadmIAM

What happened?

Microsoft Edge Beta/WebView2 Beta 149.0.4022.8 appears unstable on Windows Insider Beta build 26220 / OS component set 26100.7934.

Observed crashes:

  • msedge.exe 149.0.4022.8 crashes with 0xc0000005 in ntdll.dll
  • msedgewebview2.exe 149.0.4022.8 crashes with 0xc0000005 in ntdll.dll
  • WebView2 crashes occur under New Teams, New Outlook, Windows Widgets/WebExperience, and LinkedIn for Windows

Recovery blockers:

  • WebView2 uninstall is blocked: “Browser/WebView is sticky, uninstall not allowed”
  • Stable Evergreen WebView2 installer refuses because a newer version is already installed
  • Edge uninstall is unavailable/greyed out
  • Removing local Beta channel markers did not recover the machine
  • Reimage is required to return to a stable OS/browser/WebView2 baseline

Importance

Blocking. My app's basic functions are not working due to this issue.

Runtime Channel

Prerelease (Edge Canary/Dev/Beta)

Runtime Version

149.0.4022.8

SDK Version

No response

Framework

Other

Operating System

Windows 11

OS Version

No response

Repro steps

After installing the May 14 updates. App Crashes any time you try and use anything edge related.

Repros in Edge Browser

No, issue does not reproduce in the corresponding Edge version

Regression

Don't know

Last working version (if regression)

No response

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