[BUG] Claude crashes, removes itself and my outlook from my tabs? Need to deinstall and reinstall for it to work again. But my Claude Code convo is gone.

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?

2026/08/31 23:37:44.314121 Signature verified: MSIX signer matches bootstrapper
2026/08/31 23:37:44.326997 Extracted family name from MSIX manifest: Claude_pzs8sxrjxfjjc
2026/08/31 23:37:44.326997 Squirrel process prefix: c:\users\marvi\appdata\local\anthropicclaude\
2026/08/31 23:37:44.326997 Checking for running Squirrel Claude processes...
2026/08/31 23:37:44.339631 No Squirrel Claude processes found
2026/08/31 23:37:44.339631 Removing conflicting CoworkVMService...
2026/08/31 23:37:44.340706 WARNING: failed to remove conflicting service: could not open CoworkVMService: Access is denied.
2026/08/31 23:37:44.340706 Checking for existing Claude MSIX packages...
2026/08/31 23:37:44.389525 Removing: Claude_1.40609.0.0_x64__pzs8sxrjxfjjc
2026/08/31 23:37:44.411395 Windows rejected data-preserving removal for Claude_1.40609.0.0_x64__pzs8sxrjxfjjc (0x80073CFA, requires developer mode); relying on in-place update
2026/08/31 23:37:44.488408 Removing (user): Claude_1.40609.0.0_x64__pzs8sxrjxfjjc
2026/08/31 23:37:44.497405 Windows rejected data-preserving removal for Claude_1.40609.0.0_x64__pzs8sxrjxfjjc (0x80073CFA, requires developer mode); relying on in-place update
2026/08/31 23:37:44.497405 Installing MSIX: C:\Users\marvi\AppData\Local\Temp\Claude-820060103.msix
2026/08/31 23:37:44.497405 Standard install (not split-account), using AddPackage
2026/08/31 23:37:44.497405 Installing via AddPackage (current-user)...
2026/08/31 23:38:00.827683 MSIX installation failed: AddPackage failed: AddPackage failed with HRESULT 0x80073CF9
2026/08/31 23:38:00.827683 ERROR dialog (opening log): Installation failed: AddPackage failed: AddPackage failed with HRESULT 0x80073CF9

Please share this log with us.
2026/08/31 23:39:03.713653 Elevated process exited with code 1
2026/08/31 23:39:03.713653 Elevation failed: elevated installer exited with code 1
2026/08/31 23:39:03.713653 ERROR dialog (with log path): Administrator access is required to install Claude with full features. You can try again or install without Cowork.
2026/08/31 23:47:09.479343 Log file: C:\Users\marvi\AppData\Local\Temp\ClaudeSetup.log
2026/08/31 23:47:09.565980 === Claude Setup f65e386db0db64c8f8b39950e25adb11f5f5e3f3 started ===
2026/08/31 23:47:09.565980 AllowDevelopmentWithoutDevLicense found with value: 1
2026/08/31 23:47:09.565980 Windows edition: Professional
2026/08/31 23:47:09.566506 Windows version: 10.0.19045
2026/08/31 23:47:09.566506 Native arch: x64
2026/08/31 23:47:09.566506 Elevation type: Limited
2026/08/31 23:47:09.567010 Is elevated: false
2026/08/31 23:47:09.567010 Sideloading enabled: true
2026/08/31 23:47:09.567010 S Mode: false
2026/08/31 23:47:09.567030 Conflicting service: false
2026/08/31 23:47:09.567030 Running in non-elevated context
2026/08/31 23:47:09.567030 User can elevate — installing MSIX directly
2026/08/31 23:47:09.597596 Splash: 400x300, 8 frame(s), animated=true
2026/08/31 23:47:09.597596 System DPI: 96 (scale: 100%)
2026/08/31 23:47:09.642082 MSIX URL: https://api.anthropic.com/api/desktop/win32/x64/msix/latest/redirect
2026/08/31 23:47:09.643116 Downloading MSIX to C:\Users\marvi\AppData\Local\Temp\Claude-783913701.msix
2026/08/31 23:47:09.664102 proxy: WinHttpGetProxyForUrl("https://api.anthropic.com/api/desktop/win32/x64/msix/latest/redirect"): winapi error #12180
2026/08/31 23:47:09.976533 proxy: WinHttpGetProxyForUrl("https://downloads.claude.ai/releases/win32/x64/1.40609.0/Claude-f65e386db0db64c8f8b39950e25adb11f5f5e3f3.msix"): winapi error #12180
2026/08/31 23:47:15.765477 Download progress: 10% (26361664 / 263517126 bytes)
2026/08/31 23:47:21.453196 Download progress: 20% (52706928 / 263517126 bytes)
2026/08/31 23:47:27.269909 Download progress: 30% (79068592 / 263517126 bytes)
2026/08/31 23:47:32.821390 Download progress: 40% (105413856 / 263517126 bytes)
2026/08/31 23:47:38.593640 Download progress: 50% (131759136 / 263517126 bytes)
2026/08/31 23:47:44.236110 Download progress: 60% (158120784 / 263517126 bytes)
2026/08/31 23:47:49.944382 Download progress: 70% (184466064 / 263517126 bytes)
2026/08/31 23:47:55.593085 Download progress: 80% (210827712 / 263517126 bytes)
2026/08/31 23:48:01.061115 Download progress: 90% (237172976 / 263517126 bytes)
2026/08/31 23:48:06.677603 Download progress: 100% (263517126 / 263517126 bytes)
2026/08/31 23:48:06.679174 Download complete: 263517126 bytes, SHA256: e71b97d5eed6f943f9f2e0b05311286d11dfab78848353acbf7aec789167e144
2026/08/31 23:48:06.680289 Download complete
2026/08/31 23:48:06.690209 Self-elevating: C:\Users\marvi\OneDrive\Desktop\Claude Setup (2).exe --elevated --msix-path "C:\Users\marvi\AppData\Local\Temp\Claude-783913701.msix" --log-path "C:\Users\marvi\AppData\Local\Temp\ClaudeSetup.log"
2026/08/31 23:48:08.901559 Waiting for elevated process to complete...
2026/08/31 23:48:08.928347 Log file: C:\Users\marvi\AppData\Local\Temp\ClaudeSetup.log
2026/08/31 23:48:09.015951 === Claude Setup f65e386db0db64c8f8b39950e25adb11f5f5e3f3 started ===
2026/08/31 23:48:09.015951 AllowDevelopmentWithoutDevLicense found with value: 1
2026/08/31 23:48:09.015951 Windows edition: Professional
2026/08/31 23:48:09.016465 Windows version: 10.0.19045
2026/08/31 23:48:09.016465 Native arch: x64
2026/08/31 23:48:09.016465 Elevation type: Full
2026/08/31 23:48:09.016465 Is elevated: true
2026/08/31 23:48:09.016465 Sideloading enabled: true
2026/08/31 23:48:09.016465 S Mode: false
2026/08/31 23:48:09.016465 Conflicting service: false
2026/08/31 23:48:09.016465 Running in elevated context
2026/08/31 23:48:09.016975 Installing MSIX from C:\Users\marvi\AppData\Local\Temp\Claude-783913701.msix (all-users: false)
2026/08/31 23:48:09.067440 Splash: 400x300, 8 frame(s), animated=true
2026/08/31 23:48:09.067440 System DPI: 96 (scale: 100%)
2026/08/31 23:48:09.110891 Verifying Authenticode signature on C:\Users\marvi\AppData\Local\Temp\Claude-783913701.msix
2026/08/31 23:48:11.827706 WinVerifyTrust: MSIX signature is valid
2026/08/31 23:48:12.752778 Signature verified: MSIX signer matches bootstrapper
2026/08/31 23:48:12.755547 Extracted family name from MSIX manifest: Claude_pzs8sxrjxfjjc
2026/08/31 23:48:12.755547 Squirrel process prefix: c:\users\marvi\appdata\local\anthropicclaude\
2026/08/31 23:48:12.755547 Checking for running Squirrel Claude processes...
2026/08/31 23:48:12.762629 No Squirrel Claude processes found
2026/08/31 23:48:12.762629 Checking for existing Claude MSIX packages...
2026/08/31 23:48:12.800776 Installing MSIX: C:\Users\marvi\AppData\Local\Temp\Claude-783913701.msix
2026/08/31 23:48:12.800776 Standard install (not split-account), using AddPackage
2026/08/31 23:48:12.800776 Installing via AddPackage (current-user)...
2026/08/31 23:48:42.342272 MSIX installation failed: AddPackage failed: AddPackage failed with HRESULT 0x80073CF6
2026/08/31 23:48:42.342272 ERROR dialog (opening log): Installation failed: AddPackage failed: AddPackage failed with HRESULT 0x80073CF6

Please share this log with us.

What Should Happen?

just execute my tasks help rebuilding an animate elo over time thing on my website and a few more bug fixes with web links nothing crazy but maybe I overloaded him?

Error Messages/Logs

It's just telling me to re-install, it can't open it and I should contact support.

Steps to Reproduce

No clue really

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

I cant run claude just the latest i just downlaoded it

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

2026/08/28 19:14:34.516828 Starting CoworkVMService as Windows service
2026/08/28 19:14:34.726018 Claude VM Service starting...
2026/08/28 19:14:34.726018 Waiting for configuration from app via 'configure' method...
2026/08/28 19:14:34.726018 [HCS] Initializing HCS DLLs...
2026/08/28 19:14:34.726018 [HCS] Warning: Failed to load vmcompute.dll: The specified module could not be found.
2026/08/28 19:14:34.727606 [HCN] Initialized HCN API from computenetwork.dll
2026/08/28 19:14:34.731860 [Cleanup] Warning: failed to enumerate HCN networks: HcnEnumerateNetworks failed with HRESULT 0x800706d9
2026/08/28 19:14:34.731860 [VM] Stale VM scan failed, continuing without cleanup: HCS not initialized
2026/08/28 19:14:35.154249 [Server] Signature verification initialized
2026/08/28 19:14:35.154249 [Server] Service: C:\Program Files\WindowsApps\Claude_1.40609.0.0_x64__pzs8sxrjxfjjc\app\resources\cowork-svc.exe
2026/08/28 19:14:35.154249 [Server] Subject: Anthropic, PBC
2026/08/28 19:14:35.154249 [Server] Thumbprint: dbde5d16768ed0c1...
2026/08/28 19:14:35.154249 [Server] Package: Claude_pzs8sxrjxfjjc (C:\Program Files\WindowsApps\Claude_1.40609.0.0_x64__pzs8sxrjxfjjc)
2026/08/28 19:14:35.154249 [Server] Enforce: true
2026/08/28 19:14:35.154249 [Server] Starting named pipe server on \\.\pipe\cowork-vm-service
2026/08/28 19:14:35.154752 [Server] Named pipe server listening
2026/08/28 19:14:35.154752 Service ready. Listening on \\.\pipe\cowork-vm-service
2026/08/28 19:14:35.155552 Warning: failed to configure recovery actions (a crashed service will stay down until reboot): open service: Access is denied.
2026/08/28 19:19:41.745720 [Server] Client connected
2026/08/28 19:19:43.341793 [Server] Client signature verified: C:\Program Files\WindowsApps\Claude_1.40609.0.0_x64__pzs8sxrjxfjjc\app\claude.exe (subject: Anthropic, PBC)
2026/08/28 19:19:43.344030 [Server] Client connected: user=Marvin exe=claude.exe isDev=false
2026/08/28 19:19:43.344129 [VM] VM owner set: id=cowork-vm-f3ccece3 sid=S-1-5-21-1567935352-3282009321-1513645063-1001
2026/08/28 19:19:43.344670 [VM] Event callbacks set
2026/08/28 19:19:43.344670 [Server] Created new VM session for Marvin:C:\Users\marvi\AppData\Local\Packages\Claude_pzs8sxrjxfjjc\LocalCache\Roaming\Claude
2026/08/28 19:19:43.344670 [Server] Persistent RPC: entering loop
2026/08/28 19:19:45.155615 [IdleCheck] Session Marvin:C:\Users\marvi\AppData\Local\Packages\Claude_pzs8sxrjxfjjc\LocalCache\Roaming\Claude: starting idle timer now
2026/08/30 14:18:00.793869 [Server] Persistent RPC: connection ended: failed to read length: EOF
2026/08/30 14:18:00.800313 [Server] Session Marvin:C:\Users\marvi\AppData\Local\Packages\Claude_pzs8sxrjxfjjc\LocalCache\Roaming\Claude has no active connections, idle timeout starts
2026/08/30 14:18:07.130701 [Server] Client connected
2026/08/30 14:18:14.262794 [Server] Client signature verified: C:\Program Files\WindowsApps\Claude_1.40609.0.0_x64__pzs8sxrjxfjjc\app\claude.exe (subject: Anthropic, PBC)
2026/08/30 14:18:14.264851 [Server] Client connected: user=Marvin exe=claude.exe isDev=false
2026/08/30 14:18:14.268478 [Server] Persistent RPC: entering loop
2026/08/31 20:55:37.654624 [Server] Persistent RPC: connection ended: failed to read length: EOF
2026/08/31 20:55:37.656167 [Server] Session Marvin:C:\Users\marvi\AppData\Local\Packages\Claude_pzs8sxrjxfjjc\LocalCache\Roaming\Claude has no active connections, idle timeout starts
2026/08/31 21:04:13.185461 Service stop requested
2026/08/31 21:04:13.195444 Warning: failed to disarm recovery actions for this stop: open service: Access is denied.
2026/08/31 21:04:13.197044 Shutdown signal received...
2026/08/31 21:04:13.197044 [Server] Stopping server...
2026/08/31 21:04:13.197044 [Server] Stopping VM for session Marvin:C:\Users\marvi\AppData\Local\Packages\Claude_pzs8sxrjxfjjc\LocalCache\Roaming\Claude...
2026/08/31 21:04:13.198166 [VM] VM already stopped, nothing to release
2026/08/31 21:04:13.198166 [Server] Server stopped
2026/08/31 21:04:13.198166 Service stopped.
2026/08/31 21:57:58.830893 Starting CoworkVMService as Windows service
2026/08/31 21:57:58.981359 Claude VM Service starting...
2026/08/31 21:57:58.981359 Waiting for configuration from app via 'configure' method...
2026/08/31 21:57:58.981359 [HCS] Initializing HCS DLLs...
2026/08/31 21:57:58.981359 [HCS] Warning: Failed to load vmcompute.dll: The specified module could not be found.
2026/08/31 21:57:58.982441 [HCN] Initialized HCN API from computenetwork.dll
2026/08/31 21:57:58.985633 [Cleanup] Warning: failed to enumerate HCN networks: HcnEnumerateNetworks failed with HRESULT 0x800706d9
2026/08/31 21:57:58.985633 [VM] Stale VM scan failed, continuing without cleanup: HCS not initialized
2026/08/31 21:57:59.119626 [Server] Signature verification initialized
2026/08/31 21:57:59.119626 [Server] Service: C:\Program Files\WindowsApps\Claude_1.40609.0.0_x64__pzs8sxrjxfjjc\app\resources\cowork-svc.exe
2026/08/31 21:57:59.119626 [Server] Subject: Anthropic, PBC
2026/08/31 21:57:59.119626 [Server] Thumbprint: dbde5d16768ed0c1...
2026/08/31 21:57:59.119626 [Server] Package: Claude_pzs8sxrjxfjjc (C:\Program Files\WindowsApps\Claude_1.40609.0.0_x64__pzs8sxrjxfjjc)
2026/08/31 21:57:59.119626 [Server] Enforce: true
2026/08/31 21:57:59.119626 [Server] Starting named pipe server on \\.\pipe\cowork-vm-service
2026/08/31 21:57:59.119626 [Server] Named pipe server listening
2026/08/31 21:57:59.120129 Service ready. Listening on \\.\pipe\cowork-vm-service
2026/08/31 21:57:59.120168 Warning: failed to configure recovery actions (a crashed service will stay down until reboot): open service: Access is denied.
2026/08/31 22:01:34.292697 [Server] Client connected
2026/08/31 22:01:35.845627 [Server] Client signature verified: C:\Program Files\WindowsApps\Claude_1.40609.0.0_x64__pzs8sxrjxfjjc\app\claude.exe (subject: Anthropic, PBC)
2026/08/31 22:01:35.846185 [Server] Client connected: user=Marvin exe=claude.exe isDev=false
2026/08/31 22:01:35.846185 [VM] VM owner set: id=cowork-vm-f3ccece3 sid=S-1-5-21-1567935352-3282009321-1513645063-1001
2026/08/31 22:01:35.846185 [VM] Event callbacks set
2026/08/31 22:01:35.846185 [Server] Created new VM session for Marvin:C:\Users\marvi\AppData\Local\Packages\Claude_pzs8sxrjxfjjc\LocalCache\Roaming\Claude
2026/08/31 22:01:35.846185 [Server] Persistent RPC: entering loop
2026/08/31 22:01:39.121076 [IdleCheck] Session Marvin:C:\Users\marvi\AppData\Local\Packages\Claude_pzs8sxrjxfjjc\LocalCache\Roaming\Claude: starting idle timer now
2026/08/31 22:30:32.566534 [Server] Persistent RPC: connection ended: failed to read length: EOF
2026/08/31 22:30:32.566534 [Server] Session Marvin:C:\Users\marvi\AppData\Local\Packages\Claude_pzs8sxrjxfjjc\LocalCache\Roaming\Claude has no active connections, idle timeout starts
2026/08/31 23:46:17.494651 Service stop requested
2026/08/31 23:46:17.502961 Warning: failed to disarm recovery actions for this stop: open service: Access is denied.
2026/08/31 23:46:17.503979 Shutdown signal received...
2026/08/31 23:46:17.504487 [Server] Stopping server...
2026/08/31 23:46:17.504487 [Server] Stopping VM for session Marvin:C:\Users\marvi\AppData\Local\Packages\Claude_pzs8sxrjxfjjc\LocalCache\Roaming\Claude...
2026/08/31 23:46:17.504998 [VM] VM already stopped, nothing to release
2026/08/31 23:46:17.504998 [Server] Server stopped
2026/08/31 23:46:17.504998 Service stopped.