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claude-code - 💡(How to fix) Fix [BUG] HRESULT 0x80073CF6" and "process exited with code 1 [1 comments, 2 participants]

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anthropics/claude-code#51878•Fetched 2026-04-23 07:42:29
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Error Message

After a recent update to Claude Desktop, Claude Code sessions crash with the error "Claude Code process exited with code 1." The issue started immediately after the update — prior versions worked without any problems. Installation error during reinstall: I have the full ClaudeSetup.log from the failed installation attempt (showing the HRESULT 0x80073CF6 error during AddPackage). Happy to share it if needed. After a recent update to Claude Desktop, Claude Code sessions crash with the error "Claude Code process exited with code 1." The issue started immediately after the update — prior versions worked without any problems. Installation error during reinstall: I have the full ClaudeSetup.log from the failed installation attempt (showing the HRESULT 0x80073CF6 error during AddPackage). Happy to share it if needed.

Error Messages/Logs

After a recent update to Claude Desktop, Claude Code sessions crash with the error "Claude Code process exited with code 1." The issue started immediately after the update — prior versions worked without any problems. Installation error during reinstall: I have the full ClaudeSetup.log from the failed installation attempt (showing the HRESULT 0x80073CF6 error during AddPackage). Happy to share it if needed.

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Preflight Checklist

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

What's Wrong?

Issue: Claude Code process crashes with exit code 1 after recent update

Environment:

  • OS: Windows 11, Build 10.0.26200.8246
  • Claude Desktop / Claude Code version: 2.1.117
  • Architecture: x64

Summary: After a recent update to Claude Desktop, Claude Code sessions crash with the error "Claude Code process exited with code 1." The issue started immediately after the update — prior versions worked without any problems.

What I tried:

  1. Fully uninstalled the app (including AppX packages and local AppData folders)
  2. Restarted the system
  3. Reinstalled the latest version from claude.ai/download

Installation error during reinstall: During reinstallation, the installer failed with: Installation failed: AddPackage failed: AddPackage failed with HRESULT 0x80073CF6

The installer then offered an "install without Cowork" option, which completed successfully. However, the original crash issue ("Claude Code process exited with code 1") still occurs after this clean install.

Reproduction:

  • Open Claude Desktop
  • Go to the Code tab
  • Open any project folder via "Select folder"
  • The process crashes with exit code 1 (occurs consistently across multiple projects)

Additional notes:

  • My local user data at C:\Users\<user>\.claude\projects\ is intact (40+ project session histories preserved)
  • After reinstall, the Projects list in the Code tab appears empty until folders are manually re-selected
  • The crash happens regardless of which project I open
  • Terminal CLI (claude command) works fine — issue appears specific to the desktop app's Code tab

Log file: I have the full ClaudeSetup.log from the failed installation attempt (showing the HRESULT 0x80073CF6 error during AddPackage). Happy to share it if needed.

This is blocking my daily workflow across multiple active projects. Any guidance or a fix would be greatly appreciated.

What Should Happen?

Issue: Claude Code process crashes with exit code 1 after recent update

Environment:

  • OS: Windows 11, Build 10.0.26200.8246
  • Claude Desktop / Claude Code version: 2.1.117
  • Architecture: x64

Summary: After a recent update to Claude Desktop, Claude Code sessions crash with the error "Claude Code process exited with code 1." The issue started immediately after the update — prior versions worked without any problems.

What I tried:

  1. Fully uninstalled the app (including AppX packages and local AppData folders)
  2. Restarted the system
  3. Reinstalled the latest version from claude.ai/download

Installation error during reinstall: During reinstallation, the installer failed with: Installation failed: AddPackage failed: AddPackage failed with HRESULT 0x80073CF6

The installer then offered an "install without Cowork" option, which completed successfully. However, the original crash issue ("Claude Code process exited with code 1") still occurs after this clean install.

Reproduction:

  • Open Claude Desktop
  • Go to the Code tab
  • Open any project folder via "Select folder"
  • The process crashes with exit code 1 (occurs consistently across multiple projects)

Additional notes:

  • My local user data at C:\Users\<user>\.claude\projects\ is intact (40+ project session histories preserved)
  • After reinstall, the Projects list in the Code tab appears empty until folders are manually re-selected
  • The crash happens regardless of which project I open
  • Terminal CLI (claude command) works fine — issue appears specific to the desktop app's Code tab

Log file: I have the full ClaudeSetup.log from the failed installation attempt (showing the HRESULT 0x80073CF6 error during AddPackage). Happy to share it if needed.

This is blocking my daily workflow across multiple active projects. Any guidance or a fix would be greatly appreciated.

Error Messages/Logs

Steps to Reproduce

Issue: Claude Code process crashes with exit code 1 after recent update

Environment:

  • OS: Windows 11, Build 10.0.26200.8246
  • Claude Desktop / Claude Code version: 2.1.117
  • Architecture: x64

Summary: After a recent update to Claude Desktop, Claude Code sessions crash with the error "Claude Code process exited with code 1." The issue started immediately after the update — prior versions worked without any problems.

What I tried:

  1. Fully uninstalled the app (including AppX packages and local AppData folders)
  2. Restarted the system
  3. Reinstalled the latest version from claude.ai/download

Installation error during reinstall: During reinstallation, the installer failed with: Installation failed: AddPackage failed: AddPackage failed with HRESULT 0x80073CF6

The installer then offered an "install without Cowork" option, which completed successfully. However, the original crash issue ("Claude Code process exited with code 1") still occurs after this clean install.

Reproduction:

  • Open Claude Desktop
  • Go to the Code tab
  • Open any project folder via "Select folder"
  • The process crashes with exit code 1 (occurs consistently across multiple projects)

Additional notes:

  • My local user data at C:\Users\<user>\.claude\projects\ is intact (40+ project session histories preserved)
  • After reinstall, the Projects list in the Code tab appears empty until folders are manually re-selected
  • The crash happens regardless of which project I open
  • Terminal CLI (claude command) works fine — issue appears specific to the desktop app's Code tab

Log file: I have the full ClaudeSetup.log from the failed installation attempt (showing the HRESULT 0x80073CF6 error during AddPackage). Happy to share it if needed.

This is blocking my daily workflow across multiple active projects. Any guidance or a fix would be greatly appreciated.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

Claude Code 2.1.117

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

No response

extent analysis

TL;DR

The issue might be related to the installation error with HRESULT 0x80073CF6, and a potential workaround could be to investigate the installation logs and try reinstalling without the Cowork option.

Guidance

  1. Investigate the installation log: Share the full ClaudeSetup.log to understand the root cause of the HRESULT 0x80073CF6 error during the AddPackage step.
  2. Reinstall without Cowork: Since the "install without Cowork" option completed successfully, try to use this installation and see if the issue persists.
  3. Check for dependencies: Ensure all dependencies required by Claude Code are properly installed and configured.
  4. Test with a clean project: Try opening a new, empty project to see if the issue is project-specific or a general problem with the Code tab.
  5. Compare with Terminal CLI: As the Terminal CLI (claude command) works fine, compare the environment and settings between the desktop app and the CLI to identify potential differences.

Notes

The provided information suggests a potential issue with the installation or configuration of Claude Code, but without the full installation log, it's difficult to provide a more specific solution. The fact that the Terminal CLI works correctly implies that the problem might be specific to the desktop application's Code tab.

Recommendation

Apply workaround: Reinstall without Cowork and investigate the installation log to identify the root cause of the issue. This might help resolve the crash issue with the Code tab.

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