[BUG] Claude Desktop failed to launch. Please check for updates and try again.

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Claude Desktop Bug Report
Desktop app version: 1.1617.0.0
Windows version: Windows 10 Home, Version 22H2 (OS Build 19045.7184)
Error message: "Claude Desktop failed to launch. Please check for updates and try again."
Event Viewer — Event ID 1000, Application Error:

Faulting application name: Claude.exe, version 1.1617.0.0
Faulting module name: CoreMessaging.dll, version 10.0.19041.5915
Exception code: 0xc0000602
App path: C:\Program Files\WindowsApps\Claude_1.1617.0.0_x64_pzs8sxrjxfjjc\app\Claude.exe

Troubleshooting already attempted:

Windows Updates — all applied
SFC and DISM system file repair
chkdsk /f /r — found and fixed file system errors
BIOS update
Visual C++ Redistributables repaired (x64 and x86)
Full AppX removal via PowerShell + AppData folders cleared
Multiple reinstalls via claude.ai/download (.exe is an MSIX wrapper, installs to WindowsApps)
Temporarily disabled Windows Defender and antivirus — no change

What Should Happen?

Claude Desktop Should Install correctly

Error Messages/Logs

Claude Desktop Bug Report
Desktop app version: 1.1617.0.0
Windows version: Windows 10 Home, Version 22H2 (OS Build 19045.7184)
Error message: "Claude Desktop failed to launch. Please check for updates and try again."
Event Viewer — Event ID 1000, Application Error:

Faulting application name: Claude.exe, version 1.1617.0.0
Faulting module name: CoreMessaging.dll, version 10.0.19041.5915
Exception code: 0xc0000602
App path: C:\Program Files\WindowsApps\Claude_1.1617.0.0_x64_pzs8sxrjxfjjc\app\Claude.exe

Troubleshooting already attempted:

Windows Updates — all applied
SFC and DISM system file repair
chkdsk /f /r — found and fixed file system errors
BIOS update
Visual C++ Redistributables repaired (x64 and x86)
Full AppX removal via PowerShell + AppData folders cleared
Multiple reinstalls via claude.ai/download (.exe is an MSIX wrapper, installs to WindowsApps)
Temporarily disabled Windows Defender and antivirus — no change

Steps to Reproduce

Claude Desktop Bug Report
Desktop app version: 1.1617.0.0
Windows version: Windows 10 Home, Version 22H2 (OS Build 19045.7184)
Error message: "Claude Desktop failed to launch. Please check for updates and try again."
Event Viewer — Event ID 1000, Application Error:

Faulting application name: Claude.exe, version 1.1617.0.0
Faulting module name: CoreMessaging.dll, version 10.0.19041.5915
Exception code: 0xc0000602
App path: C:\Program Files\WindowsApps\Claude_1.1617.0.0_x64_pzs8sxrjxfjjc\app\Claude.exe

Troubleshooting already attempted:

Windows Updates — all applied
SFC and DISM system file repair
chkdsk /f /r — found and fixed file system errors
BIOS update
Visual C++ Redistributables repaired (x64 and x86)
Full AppX removal via PowerShell + AppData folders cleared
Multiple reinstalls via claude.ai/download (.exe is an MSIX wrapper, installs to WindowsApps)
Temporarily disabled Windows Defender and antivirus — no change

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

N/A

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Claude Desktop Bug Report
Desktop app version: 1.1617.0.0
Windows version: Windows 10 Home, Version 22H2 (OS Build 19045.7184)
Error message: "Claude Desktop failed to launch. Please check for updates and try again."
Event Viewer — Event ID 1000, Application Error:

Faulting application name: Claude.exe, version 1.1617.0.0
Faulting module name: CoreMessaging.dll, version 10.0.19041.5915
Exception code: 0xc0000602
App path: C:\Program Files\WindowsApps\Claude_1.1617.0.0_x64_pzs8sxrjxfjjc\app\Claude.exe

Troubleshooting already attempted:

Windows Updates — all applied
SFC and DISM system file repair
chkdsk /f /r — found and fixed file system errors
BIOS update
Visual C++ Redistributables repaired (x64 and x86)
Full AppX removal via PowerShell + AppData folders cleared
Multiple reinstalls via claude.ai/download (.exe is an MSIX wrapper, installs to WindowsApps)
Temporarily disabled Windows Defender and antivirus — no change