### Preflight Checklist - [x] I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) 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? 2026/06/07 02:28:13.175999 Log file: C:\Users\testxx1\AppData\Local\Temp\ClaudeSetup.log 2026/06/07 02:28:13.176998 === Claude Setup 58400536f3ccde1cff9a1

[BUG] can't install claude windows desktop

Resolved 💬 2 comments Opened Jun 7, 2026 by darwinzou110 Closed Jun 10, 2026

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?

2026/06/07 02:28:13.175999 Log file: C:\Users\testxx1\AppData\Local\Temp\ClaudeSetup.log
2026/06/07 02:28:13.176998 === Claude Setup 58400536f3ccde1cff9a129de6c3112dc8cb489a started ===
2026/06/07 02:28:13.177999 AllowAllTrustedApps not found (sideloading assumed enabled): The system cannot find the file specified.
2026/06/07 02:28:13.177999 Windows edition: Professional
2026/06/07 02:28:13.178997 WARNING: CoworkVMService already exists (potential conflict)
2026/06/07 02:28:13.178997 Windows version: 10.0.19045
2026/06/07 02:28:13.178997 Native arch: x64
2026/06/07 02:28:13.178997 Elevation type: Limited
2026/06/07 02:28:13.179996 Is elevated: false
2026/06/07 02:28:13.179996 Sideloading enabled: true
2026/06/07 02:28:13.179996 S Mode: false
2026/06/07 02:28:13.180996 Conflicting service: true
2026/06/07 02:28:13.180996 Running in non-elevated context
2026/06/07 02:28:13.180996 User can elevate — installing MSIX directly
2026/06/07 02:28:13.211995 Splash: 400x300, 8 frame(s), animated=true
2026/06/07 02:28:13.211995 System DPI: 96 (scale: 100%)
2026/06/07 02:28:13.252835 MSIX URL: https://api.anthropic.com/api/desktop/win32/x64/msix/latest/redirect
2026/06/07 02:28:13.263351 Downloading MSIX to C:\Users\testxx1\AppData\Local\Temp\Claude-900360847.msix
2026/06/07 02:28:13.282349 proxy: WinHttpGetProxyForUrl("https://api.anthropic.com/api/desktop/win32/x64/msix/latest/redirect"): winapi error #12180
2026/06/07 02:28:13.454316 proxy: WinHttpGetProxyForUrl("https://downloads.claude.ai/releases/win32/x64/1.11187.4/Claude-58400536f3ccde1cff9a129de6c3112dc8cb489a.msix"): winapi error #12180
2026/06/07 02:28:14.737462 Download progress: 10% (22215968 / 222055920 bytes)
2026/06/07 02:28:15.864956 Download progress: 20% (44416720 / 222055920 bytes)
2026/06/07 02:28:16.968743 Download progress: 30% (66632656 / 222055920 bytes)
2026/06/07 02:28:18.046830 Download progress: 40% (88833440 / 222055920 bytes)
2026/06/07 02:28:19.321979 Download progress: 50% (111049344 / 222055920 bytes)
2026/06/07 02:28:20.370642 Download progress: 60% (133233744 / 222055920 bytes)
2026/06/07 02:28:21.391684 Download progress: 70% (155450240 / 222055920 bytes)
2026/06/07 02:28:22.363338 Download progress: 80% (177666304 / 222055920 bytes)
2026/06/07 02:28:23.406016 Download progress: 90% (199850576 / 222055920 bytes)
2026/06/07 02:28:24.621164 Download progress: 100% (222055920 / 222055920 bytes)
2026/06/07 02:28:24.622247 Download complete: 222055920 bytes, SHA256: 8d0d2d8bbbb8373bddf9ac548131bef3facbb70a26df10c69618aeb23c87c73b
2026/06/07 02:28:24.622837 Download complete
2026/06/07 02:28:24.630158 Self-elevating: D:\download\Claude Setup.exe --elevated --msix-path "C:\Users\testxx1\AppData\Local\Temp\Claude-900360847.msix" --log-path "C:\Users\testxx1\AppData\Local\Temp\ClaudeSetup.log"
2026/06/07 02:28:24.844291 Waiting for elevated process to complete...
2026/06/07 02:28:24.849826 Log file: C:\Users\testxx1\AppData\Local\Temp\ClaudeSetup.log
2026/06/07 02:28:24.850347 === Claude Setup 58400536f3ccde1cff9a129de6c3112dc8cb489a started ===
2026/06/07 02:28:24.851093 AllowAllTrustedApps not found (sideloading assumed enabled): The system cannot find the file specified.
2026/06/07 02:28:24.851620 Windows edition: Professional
2026/06/07 02:28:24.852141 WARNING: CoworkVMService already exists (potential conflict)
2026/06/07 02:28:24.852141 Windows version: 10.0.19045
2026/06/07 02:28:24.852141 Native arch: x64
2026/06/07 02:28:24.852141 Elevation type: Full
2026/06/07 02:28:24.852141 Is elevated: true
2026/06/07 02:28:24.852141 Sideloading enabled: true
2026/06/07 02:28:24.852141 S Mode: false
2026/06/07 02:28:24.852141 Conflicting service: true
2026/06/07 02:28:24.852141 Running in elevated context
2026/06/07 02:28:24.852141 Installing MSIX from C:\Users\testxx1\AppData\Local\Temp\Claude-900360847.msix (all-users: false)
2026/06/07 02:28:24.883514 Splash: 400x300, 8 frame(s), animated=true
2026/06/07 02:28:24.883514 System DPI: 96 (scale: 100%)
2026/06/07 02:28:24.912369 Verifying Authenticode signature on C:\Users\testxx1\AppData\Local\Temp\Claude-900360847.msix
2026/06/07 02:28:26.763526 WinVerifyTrust: MSIX signature is valid
2026/06/07 02:28:27.204305 Signature verified: MSIX signer matches bootstrapper
2026/06/07 02:28:27.205386 Extracted family name from MSIX manifest: Claude_pzs8sxrjxfjjc
2026/06/07 02:28:27.205386 Squirrel process prefix: c:\users\testxx1\appdata\local\anthropicclaude\
2026/06/07 02:28:27.205386 Checking for running Squirrel Claude processes...
2026/06/07 02:28:27.214459 No Squirrel Claude processes found
2026/06/07 02:28:27.214459 Removing conflicting CoworkVMService...
2026/06/07 02:28:27.214715 WARNING: failed to remove conflicting service: could not open CoworkVMService: Access is denied.
2026/06/07 02:28:27.214715 Checking for existing Claude MSIX packages...
2026/06/07 02:28:27.237680 Removing: Claude_1.9255.0.0_x64__pzs8sxrjxfjjc
2026/06/07 02:28:27.341597 WARNING: Remove failed for Claude_1.9255.0.0_x64__pzs8sxrjxfjjc: RemovePackage failed with HRESULT 0x80073CFA
2026/06/07 02:28:27.341597 Removing: Claude_1.9255.2.0_x64__pzs8sxrjxfjjc
2026/06/07 02:28:27.348495 WARNING: Remove failed for Claude_1.9255.2.0_x64__pzs8sxrjxfjjc: RemovePackage failed with HRESULT 0x80073CFA
2026/06/07 02:28:27.362280 Removing (user): Claude_1.9255.2.0_x64__pzs8sxrjxfjjc
2026/06/07 02:28:27.367566 WARNING: Remove failed for Claude_1.9255.2.0_x64__pzs8sxrjxfjjc: RemovePackage failed with HRESULT 0x80073CFA
2026/06/07 02:28:27.367566 Installing MSIX: C:\Users\testxx1\AppData\Local\Temp\Claude-900360847.msix
2026/06/07 02:28:27.367743 Standard install (not split-account), using AddPackage
2026/06/07 02:28:27.367743 Installing via AddPackage (current-user)...
2026/06/07 02:33:27.374079 MSIX installation failed: AddPackage failed: AddPackage timed out after 5 minutes
2026/06/07 02:33:27.374596 ERROR dialog (opening log): Installation failed: AddPackage failed: AddPackage timed out after 5 minutes

Please share this log with us.
2026/06/07 02:39:41.513241 Elevated process exited with code 1
2026/06/07 02:39:41.513241 Elevation failed: elevated installer exited with code 1
2026/06/07 02:39:41.513241 ERROR dialog (with log path): Administrator access is required to install Claude with full features. You can try again or install without Cowork.
2026/06/07 02:43:45.389562 Log file: C:\Users\testxx1\AppData\Local\Temp\ClaudeSetup.log
2026/06/07 02:43:45.390084 === Claude Setup 58400536f3ccde1cff9a129de6c3112dc8cb489a started ===
2026/06/07 02:43:45.391138 AllowAllTrustedApps not found (sideloading assumed enabled): The system cannot find the file specified.
2026/06/07 02:43:45.391653 Windows edition: Professional
2026/06/07 02:43:45.392208 WARNING: CoworkVMService already exists (potential conflict)
2026/06/07 02:43:45.392208 Windows version: 10.0.19045
2026/06/07 02:43:45.392208 Native arch: x64
2026/06/07 02:43:45.392208 Elevation type: Full
2026/06/07 02:43:45.392208 Is elevated: true
2026/06/07 02:43:45.392208 Sideloading enabled: true
2026/06/07 02:43:45.392208 S Mode: false
2026/06/07 02:43:45.392208 Conflicting service: true
2026/06/07 02:43:45.392208 Running in non-elevated context
2026/06/07 02:43:45.392208 User can elevate — installing MSIX directly
2026/06/07 02:43:45.422920 Splash: 400x300, 8 frame(s), animated=true
2026/06/07 02:43:45.422920 System DPI: 96 (scale: 100%)
2026/06/07 02:43:45.463984 MSIX URL: https://api.anthropic.com/api/desktop/win32/x64/msix/latest/redirect
2026/06/07 02:43:45.467163 Downloading MSIX to C:\Users\testxx1\AppData\Local\Temp\Claude-4036598081.msix
2026/06/07 02:43:45.488713 proxy: WinHttpGetProxyForUrl("https://api.anthropic.com/api/desktop/win32/x64/msix/latest/redirect"): winapi error #12180
2026/06/07 02:43:45.648011 proxy: WinHttpGetProxyForUrl("https://downloads.claude.ai/releases/win32/x64/1.11187.4/Claude-58400536f3ccde1cff9a129de6c3112dc8cb489a.msix"): winapi error #12180
2026/06/07 02:43:46.912181 Download progress: 10% (22216640 / 222055920 bytes)
2026/06/07 02:43:48.049209 Download progress: 20% (44433168 / 222055920 bytes)
2026/06/07 02:43:49.015821 Download progress: 30% (66633264 / 222055920 bytes)
2026/06/07 02:43:50.023620 Download progress: 40% (88833568 / 222055920 bytes)
2026/06/07 02:43:51.209035 Download progress: 50% (111032960 / 222055920 bytes)
2026/06/07 02:43:52.266123 Download progress: 60% (133233712 / 222055920 bytes)
2026/06/07 02:43:53.316335 Download progress: 70% (155450208 / 222055920 bytes)
2026/06/07 02:43:54.326508 Download progress: 80% (177649856 / 222055920 bytes)
2026/06/07 02:43:55.367517 Download progress: 90% (199850544 / 222055920 bytes)
2026/06/07 02:43:56.548981 Download progress: 100% (222055920 / 222055920 bytes)
2026/06/07 02:43:56.550017 Download complete: 222055920 bytes, SHA256: 8d0d2d8bbbb8373bddf9ac548131bef3facbb70a26df10c69618aeb23c87c73b
2026/06/07 02:43:56.550535 Download complete
2026/06/07 02:43:56.555903 Self-elevating: D:\download\Claude Setup.exe --elevated --msix-path "C:\Users\testxx1\AppData\Local\Temp\Claude-4036598081.msix" --log-path "C:\Users\testxx1\AppData\Local\Temp\ClaudeSetup.log"
2026/06/07 02:43:56.618651 Waiting for elevated process to complete...
2026/06/07 02:43:56.625237 Log file: C:\Users\testxx1\AppData\Local\Temp\ClaudeSetup.log
2026/06/07 02:43:56.625758 === Claude Setup 58400536f3ccde1cff9a129de6c3112dc8cb489a started ===
2026/06/07 02:43:56.626524 AllowAllTrustedApps not found (sideloading assumed enabled): The system cannot find the file specified.
2026/06/07 02:43:56.627040 Windows edition: Professional
2026/06/07 02:43:56.627582 WARNING: CoworkVMService already exists (potential conflict)
2026/06/07 02:43:56.627582 Windows version: 10.0.19045
2026/06/07 02:43:56.627582 Native arch: x64
2026/06/07 02:43:56.627582 Elevation type: Full
2026/06/07 02:43:56.627582 Is elevated: true
2026/06/07 02:43:56.627582 Sideloading enabled: true
2026/06/07 02:43:56.627582 S Mode: false
2026/06/07 02:43:56.627582 Conflicting service: true
2026/06/07 02:43:56.627582 Running in elevated context
2026/06/07 02:43:56.627582 Installing MSIX from C:\Users\testxx1\AppData\Local\Temp\Claude-4036598081.msix (all-users: false)
2026/06/07 02:43:56.658022 Splash: 400x300, 8 frame(s), animated=true
2026/06/07 02:43:56.658022 System DPI: 96 (scale: 100%)
2026/06/07 02:43:56.686810 Verifying Authenticode signature on C:\Users\testxx1\AppData\Local\Temp\Claude-4036598081.msix
2026/06/07 02:43:58.449682 WinVerifyTrust: MSIX signature is valid
2026/06/07 02:43:58.868849 Signature verified: MSIX signer matches bootstrapper
2026/06/07 02:43:58.870105 Extracted family name from MSIX manifest: Claude_pzs8sxrjxfjjc
2026/06/07 02:43:58.870105 Squirrel process prefix: c:\users\testxx1\appdata\local\anthropicclaude\
2026/06/07 02:43:58.870105 Checking for running Squirrel Claude processes...
2026/06/07 02:43:58.877173 No Squirrel Claude processes found
2026/06/07 02:43:58.877173 Removing conflicting CoworkVMService...
2026/06/07 02:43:58.877173 WARNING: failed to remove conflicting service: could not open CoworkVMService: Access is denied.
2026/06/07 02:43:58.877173 Checking for existing Claude MSIX packages...
2026/06/07 02:43:58.895018 Removing: Claude_1.9255.0.0_x64__pzs8sxrjxfjjc
2026/06/07 02:43:59.021476 WARNING: Remove failed for Claude_1.9255.0.0_x64__pzs8sxrjxfjjc: RemovePackage failed with HRESULT 0x80073CFA
2026/06/07 02:43:59.021476 Removing: Claude_1.9255.2.0_x64__pzs8sxrjxfjjc
2026/06/07 02:43:59.026493 WARNING: Remove failed for Claude_1.9255.2.0_x64__pzs8sxrjxfjjc: RemovePackage failed with HRESULT 0x80073CFA
2026/06/07 02:43:59.035835 Removing (user): Claude_1.9255.2.0_x64__pzs8sxrjxfjjc
2026/06/07 02:43:59.039826 WARNING: Remove failed for Claude_1.9255.2.0_x64__pzs8sxrjxfjjc: RemovePackage failed with HRESULT 0x80073CFA
2026/06/07 02:43:59.039826 Installing MSIX: C:\Users\testxx1\AppData\Local\Temp\Claude-4036598081.msix
2026/06/07 02:43:59.039826 Standard install (not split-account), using AddPackage
2026/06/07 02:43:59.039826 Installing via AddPackage (current-user)...
2026/06/07 02:48:59.052087 MSIX installation failed: AddPackage failed: AddPackage timed out after 5 minutes
2026/06/07 02:48:59.052087 ERROR dialog (opening log): Installation failed: AddPackage failed: AddPackage timed out after 5 minutes

Please share this log with us.
2026/06/07 02:49:24.245097 Elevated process exited with code 1
2026/06/07 02:49:24.245097 Elevation failed: elevated installer exited with code 1
2026/06/07 02:49:24.245097 ERROR dialog (with log path): Administrator access is required to install Claude with full features. You can try again or install without Cowork.

What Should Happen?

Error Messages/Logs

Steps to Reproduce

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

none

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_

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