[BUG] Claude Desktop won't display window on Windows 11 ARM64 (Samsung Galaxy Book Edge, Snapdragon X Elite)

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?

Subject: Claude Desktop won't display window on Windows 11 ARM64 (Samsung Galaxy Book Edge, Snapdragon X Elite)

Device: Samsung Galaxy Book Edge, Snapdragon X Elite X1E-80-100, Windows 11 ARM64

Claude version: 1.3109.0.0 (ARM64, SignatureKind: Developer)

What happens: App installs, 9 background processes run, VM service starts and connects, signatures verify — but no window ever appears.

Errors in logs:

Unable to move the cache: Access is denied (0x5)

BuddyBleTransport reportState — no handler registered
unknown-window.log generating instead of a named main window log

MaxListenersExceededWarning in main.log

Already tried: Clean reinstall x3, registry window bounds reset, icacls permission fixes, direct .exe launch, Virtual Machine Platform enabled.

Ran the run the Event Viewer check. No errors at all — which actually confirms it:

Claude Desktop isn't crashing, it's just not rendering a window. Windows doesn't even see it as an error.

What Should Happen?

This is definitively the ARM64 window rendering bug. No more troubleshooting steps will fix this — it needs a code fix from Anthropic.

Error Messages/Logs

Steps to Reproduce

Steps to Reproduce

Device: Samsung Galaxy Book Edge, Snapdragon X Elite X1E-80-100, Windows 11 ARM64
Download Claude Desktop ARM64 installer from claude.com/download
Right-click installer → Run as Administrator
Accept UAC prompt — installation completes successfully
Launch Claude Desktop from Start menu or directly via:
C:\Program Files\WindowsApps\Claude_1.3109.0.0_arm64__pzs8sxrjxfjjc\app\claude.exe
No window appears — app runs silently in background

Verification that app is running but windowless:
powershellGet-Process -Name "claude"

Returns 9 active processes with significant memory usage (400MB+)

Errors found in logs:
C:\Users\[user]\AppData\Roaming\Claude\logs\main.log:

• Unable to move the cache: Access is denied (0x5)
• BuddyBleTransport reportState: No handler registered
• MaxListenersExceededWarning: 11 listeners added, max is 10

C:\Users\[user]\AppData\Roaming\Claude\logs\

• Generates "unknown-window.log" instead of a named main window log

Additional findings:

Get-AppxPackage shows SignatureKind: Developer instead of Store
VM service starts and connects successfully — backend works fine
No errors appear in Windows Event Viewer
Issue persists after: clean reinstall x3, registry window bounds reset, icacls permission fixes, Virtual Machine Platform enabled, full system restart

Expected: Claude Desktop window appears on launch
Actual: No window renders — app runs as background processes only

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

1.3109.0.0 (ARM64, SignatureKind: Developer)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_