### 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? ### What's wrong? Claude Desktop install fails with AddPackage HRESULT 0x80073D28 on every attempt, including after a completely clean uninstall, a full W

[BUG] AddPackage HRESULT 0x80073D28 persists after full SFC/DISM repair and reboot — related to #61392

Open 💬 0 comments Opened Jul 12, 2026 by qp-gpu

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?

What's wrong?

Claude Desktop install fails with AddPackage HRESULT 0x80073D28 on every attempt,
including after a completely clean uninstall, a full Windows system file repair
(SFC + DISM RestoreHealth, both completed successfully), and a reboot. This matches
the orphaned AppRepository registration pattern described in #61392 (closed as not
planned), but I wanted to confirm the issue persists even when system corruption is
ruled out as a cause.

What Should Happen?

Reinstall should succeed after a clean uninstall, or the installer should detect
and clear the orphaned registration automatically, or offer a non-MSIX (EXE-based)
fallback installer as suggested in #61392.

Error Messages/Logs

Steps to Reproduce

Steps to reproduce

Fully uninstall Claude Desktop via Get-AppxPackage -Name "*Claude*" | Remove-AppxPackage (succeeds, confirmed empty afterward)
Run Claude Setup.exe as Administrator to reinstall
Installer fails immediately with AddPackage HRESULT 0x80073D28
Ran sfc /scannow — found and repaired corrupted files
Ran DISM /Online /Cleanup-Image /RestoreHealth — completed successfully
Rebooted
Retried install as Administrator — same error persists

Setup log excerpt

2026/07/12 19:27:22.019182 Checking for existing Claude MSIX packages...
2026/07/12 19:27:22.037182 Removing: Claude_1.20186.1.0_x64__pzs8sxrjxfjjc
2026/07/12 19:27:22.043738 Windows rejected data-preserving removal for Claude_1.20186.1.0_x64__pzs8sxrjxfjjc (0x80073CFA, requires developer mode)
2026/07/12 19:27:22.056853 Installing MSIX: C:\Users...\Temp\Claude-13656682.msix
2026/07/12 19:27:22.056853 Standard install (not split-account), using AddPackage
2026/07/12 19:27:22.056853 Installing via AddPackage (current-user)...
2026/07/12 19:27:22.579827 MSIX installation failed: AddPackage failed with HRESULT 0x80073D28

Note the installer still references the old package version (Claude_1.20186.1.0),
even though it was already fully removed via PowerShell beforehand — suggesting an
orphaned AppRepository record survives clean uninstalls, consistent with the root
cause described in #61392.

Impact

Completely blocked from using Claude Desktop on this machine. Using claude.ai in
browser as a workaround.

Relation to other reports

Checked #76130 first in case of duplication — different root cause. That report's
error is HRESULT 0x80073CFF, caused by stuck files in WindowsApps\Deleted, with no
CoworkVMService reference in its log. My case is HRESULT 0x80073D28, and the log
explicitly shows the installer attempting to remove/register a CoworkVMService-
containing package, matching the diagnosis in #61392 rather than #76130.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude_1.20186.1.0_x64__pzs8sxrjxfjjc

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

View original on GitHub ↗