[BUG] Claude Desktop installer falsely detects Windows S Mode on Windows 10 IoT Enterprise LTSC

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?

The Claude Desktop installer refuses to install, displaying the error:

"Windows S Mode must be disabled to install Claude."

The machine is not running Windows S Mode. It is running Windows 10 IoT Enterprise LTSC 2021, which has an EditionID registry value of IoTEnterpriseS at HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion.
The installer appears to be checking for the presence of "S" in the EditionID string and incorrectly concluding that the OS is in S Mode. The trailing "S" in IoTEnterpriseS refers to the LTSC subscription variant, not S Mode.

What Should Happen?

The installer should install normally. Windows 10 IoT Enterprise LTSC is a full-featured Windows edition with no S Mode restrictions. Non-Store applications install and run without issue. install

Error Messages/Logs

Steps to Reproduce

On a Windows 10 IoT Enterprise LTSC 2021 machine, download the Claude Desktop installer
Run the installer
Installer immediately shows "Windows S Mode must be disabled to install Claude" and refuses to proceed

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Latest claude desktop

Platform

Anthropic API

Operating System

Windows 10 LTS

Terminal/Shell

Windows Terminal

Additional Information

_No response_