[BUG] Claude Desktop fails to launch on Windows 10 IoT Enterprise LTSC 21H2 — "Hay un problema con Claude" / Resources.????????.pri not resolved

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?

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report
• [x] I am using the latest version of Claude Desktop

Environment

• OS: Windows 10 IoT Enterprise LTSC 21H2 (Build 19044.5965)
• Claude Desktop version: 1.13576.0.0
• Plan: Max
• Architecture: x64
• Package SignatureKind: Developer (MSIX sideloaded)

What's Wrong?

Claude Desktop installs successfully via MSIX but fails to launch with the error:

"Hay un problema con Claude. Reinstala la aplicación desde su ubicación de instalación original o ponte en contacto con el administrador."

The app was working correctly until a Windows Update (build .5965) ran on June 15, 2026, after which the Cowork tab appeared grayed out and the app eventually stopped launching entirely.

Reproduction Steps

1. Install Claude Desktop on Windows 10 IoT Enterprise LTSC 21H2 (Build 19044.5965)
2. Launch the application
3. Error dialog appears immediately — app never opens

Diagnostic Data

AppXDeployment log shows successful install but missing resources:

Claude_1.13576.0.0_x64__pzs8sxrjxfjjc :

C:\Program Files\WindowsApps\Claude_1.13576.0.0_x64__pzs8sxrjxfjjc

microsoft.system.package.metadata\Resources.????????.pri :

No shared merged files found

AppModel runtime state after launch attempt:

• Package state updated to 0x400 (user level — blocked)
• Package state updated to 0x200002 (deployment corrupted state)

Windows Features state:
HypervisorPlatform Enabled

VirtualMachinePlatform Enabled

Microsoft-Hyper-V-All Disabled

AppModelUnlock registry:
AllowAllTrustedApps : 1

AllowDevelopmentWithoutDevLicense : 1

AppXSvc: Running / Manual

No crash events (Event ID 1000) recorded — app is blocked before launch, not crashing.

Root Cause Hypothesis

Windows 10 IoT Enterprise LTSC ships with reduced language/resource packages.
The Resources.????????.pri pattern suggests Claude Desktop cannot resolve
its resource index against the stripped-down LTSC resource stack.
This may have been exposed by the Windows Update on build .5965
which may have altered MSIX resource resolution behavior.

Expected Behavior

Claude Desktop should launch normally on Windows 10 IoT Enterprise LTSC 21H2
with all virtualization prerequisites met, or display a clear compatibility
error instead of a generic reinstall prompt.

Related Issues

• #52032 — CoworkVMService never installed after clean MSIX reinstall
• #27330 — Cowork VM not supported (win32/x64) on Windows 10
• #25136 — yukonSilver unsupported + CoworkVMService access denied

What Should Happen?

Claude Desktop should launch normally on Windows 10 IoT Enterprise LTSC 21H2 with all virtualization prerequisites met, or display a clear compatibility error instead of a generic reinstall prompt.

Error Messages/Logs

AppXDeployment log:
Claude_1.13576.0.0_x64__pzs8sxrjxfjjc : 
C:\Program Files\WindowsApps\Claude_1.13576.0.0_x64__pzs8sxrjxfjjc\microsoft.system.package.metadata\Resources.????????.pri : No shared merged files found

AppModel runtime state after launch attempt:
- Package state updated to 0x400 (user level blocked)
- Package state updated to 0x200002 (deployment corrupted state)

No crash events (Event ID 1000) recorded. App is blocked before launch, not crashing.

Steps to Reproduce

1. Install Claude Desktop 1.13576.0.0 on Windows 10 IoT Enterprise LTSC 21H2 (Build 19044.5965)
2. Launch the application normally
3. Error dialog appears immediately: "Hay un problema con Claude. Reinstala la aplicación desde su ubicación de instalación original o ponte en contacto con el administrador."
4. App never opens. No crash registered in Event Viewer.

Note: App was working correctly until Windows Update ran on June 15, 2026 (updated to build 19044.5965), after which Cowork tab appeared grayed out and app subsequently stopped launching entirely.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Unknown — last known working: before Windows Update build 19044.5965 (June 15, 2026)

Claude Code Version

N/A — this is a Claude Desktop bug, not Claude Code

Platform

Other

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

Windows 10 IoT Enterprise LTSC 21H2 (Build 19044.5965)
Claude Desktop version: 1.13576.0.0
Package SignatureKind: Developer (MSIX sideloaded)
HypervisorPlatform: Enabled
VirtualMachinePlatform: Enabled
AllowAllTrustedApps: 1
AppXSvc: Running

<img width="974" height="1047" alt="Image" src="https://github.com/user-attachments/assets/161b687a-e796-4b38-8f7e-f16b5db86740" />
<img width="1568" height="470" alt="Image" src="https://github.com/user-attachments/assets/c34f2ba3-6ced-444d-930d-020481a13214" />
<img width="1374" height="438" alt="Image" src="https://github.com/user-attachments/assets/7f73aecd-20af-45ce-b907-2e0513c3d18a" />