claude-code - 💡(How to fix) Fix Claude Desktop on Windows 11 25H2 crashes when switching to Code section (Chat and Cowork work fine) [2 comments, 2 participants]

Recurring at every startup (versions 1.3561.0.0, 1.3883.0.0, 1.4758.0.0):

[error] [Chrome Extension MCP] Failed to copy native host binary: Error: EBUSY: resource busy or locked, copyfile 'C:\Program Files\WindowsApps\Claude_<version>_x64__pzs8sxrjxfjjc\app\resources\chrome-native-host.exe' -> 'C:\Users<user>\AppData\Roaming\Claude\ChromeNativeHost\chrome-native-host.exe'

Followed by: [error] Sentry caught: { type: 'Unknown', value: 'No message', stack: undefined }

GPU crash also logged once: GPU process gone: { type: 'GPU', reason: 'crashed', exitCode: 34, serviceName: 'GPU' }

The actual Code-section crash produces NO log entry — Desktop dies silently. After crash, Task Manager shows orphaned Claude Code (~410 MB) and cowork-svc.exe still running. main.log attached.

TL;DR

The most likely fix involves addressing the "EBUSY: resource busy or locked" error when copying the native host binary, which might be causing the Claude Desktop UI to crash when switching to the Code section.

Guidance

• Investigate the file locking issue: Check if any other processes are holding a lock on the chrome-native-host.exe file, preventing it from being copied.
• Verify file permissions: Ensure that the user account running Claude Desktop has the necessary permissions to read and write to the C:\Users\<user>\AppData\Roaming\Claude\ChromeNativeHost directory.
• Review system resource usage: Monitor system resources (CPU, memory, disk usage) when switching to the Code section to identify potential bottlenecks.
• Consider a temporary workaround: Try manually copying the chrome-native-host.exe file to the destination directory before launching Claude Desktop to see if it resolves the issue.

Example

No code snippet is provided as the issue seems related to file system and process interactions rather than code logic.

Notes

The actual cause of the crash might be more complex and related to the interaction between Claude Desktop, the Code section, and system resources. The provided log files and error messages suggest a starting point for investigation but may not reveal the full picture.

Recommendation

Apply a workaround by manually copying the chrome-native-host.exe file to the destination directory before launching Claude Desktop, as this directly addresses the reported "EBUSY" error and may prevent the crash.