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claude-code - 💡(How to fix) Fix [BUG] Claude Desktop hangs on startup with blank screen (Windows)

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Error Message

Error Messages/Logs

Code Example

Description:
Claude Desktop fails to launch properly, showing only a blank screen. The VM service starts successfully but the application window remains unresponsive.
Steps to reproduce:
Install Claude Desktop on Windows
Launch the application
Window opens but displays blank screen indefinitely
Environment:
App version: 1.8555.2.0 (initially), latest version (after reinstall)
OS: Windows [your version]
Location: Accra, Ghana
What I've tried:
Multiple reinstalls
Running as administrator
Disabling antivirus
Deleting app data folders
Clean boot
Fresh install after complete removal
Event Viewer logs:
[Include the hang logs you shared earlier showing "Top level window is idle" and the fault bucket details]
Additional notes:
VM service (CoworkVMService) starts successfully but app window remains blank.
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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?

Bug Report Template: Title: Claude Desktop hangs on startup with blank screen (Windows) Description: Claude Desktop fails to launch properly, showing only a blank screen. The VM service starts successfully but the application window remains unresponsive. Steps to reproduce: Install Claude Desktop on Windows Launch the application Window opens but displays blank screen indefinitely Environment: App version: 1.8555.2.0 (initially), latest version (after reinstall) OS: Windows [your version] Location: Accra, Ghana What I've tried: Multiple reinstalls Running as administrator Disabling antivirus Deleting app data folders Clean boot Fresh install after complete removal Event Viewer logs: [Include the hang logs you shared earlier showing "Top level window is idle" and the fault bucket details] Additional notes: VM service (CoworkVMService) starts successfully but app window remains blank.

What Should Happen?

Description: Claude Desktop fails to launch properly, showing only a blank screen. The VM service starts successfully but the application window remains unresponsive. Steps to reproduce: Install Claude Desktop on Windows Launch the application Window opens but displays blank screen indefinitely Environment: App version: 1.8555.2.0 (initially), latest version (after reinstall) OS: Windows [your version] Location: Accra, Ghana What I've tried: Multiple reinstalls Running as administrator Disabling antivirus Deleting app data folders Clean boot Fresh install after complete removal Event Viewer logs: [Include the hang logs you shared earlier showing "Top level window is idle" and the fault bucket details] Additional notes: VM service (CoworkVMService) starts successfully but app window remains blank.

Error Messages/Logs

Description:
Claude Desktop fails to launch properly, showing only a blank screen. The VM service starts successfully but the application window remains unresponsive.
Steps to reproduce:
Install Claude Desktop on Windows
Launch the application
Window opens but displays blank screen indefinitely
Environment:
App version: 1.8555.2.0 (initially), latest version (after reinstall)
OS: Windows [your version]
Location: Accra, Ghana
What I've tried:
Multiple reinstalls
Running as administrator
Disabling antivirus
Deleting app data folders
Clean boot
Fresh install after complete removal
Event Viewer logs:
[Include the hang logs you shared earlier showing "Top level window is idle" and the fault bucket details]
Additional notes:
VM service (CoworkVMService) starts successfully but app window remains blank.

Steps to Reproduce

Description: Claude Desktop fails to launch properly, showing only a blank screen. The VM service starts successfully but the application window remains unresponsive. Steps to reproduce: Install Claude Desktop on Windows Launch the application Window opens but displays blank screen indefinitely Environment: App version: 1.8555.2.0 (initially), latest version (after reinstall) OS: Windows [your version] Location: Accra, Ghana What I've tried: Multiple reinstalls Running as administrator Disabling antivirus Deleting app data folders Clean boot Fresh install after complete removal Event Viewer logs: [Include the hang logs you shared earlier showing "Top level window is idle" and the fault bucket details] Additional notes: VM service (CoworkVMService) starts successfully but app window remains blank.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

aa

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

No response

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