[BUG] .NET runtime error when creating scheduled task

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?

Cannot schedule tasks in Claude Cowork as it get stuck "using scheduled-tasks...."
Have done everything Fin AI agent propsed and it finnaly recommend me to write a Bug report
In Windows Event Viewer: Windows logs: Application I get error on .NET runtime.

Running Claude Version 1.11187.4 (584005) and Windows 11 Pro

Have done:

• wsreset.exe
• sfc /scannow
• Claude "Reset App Data"
• Repair through Windows Features:
• Opened Control Panel → Programs → Turn Windows features on or off. Uncheck ".NET Framework 4.8 Advanced Services" , click OK, restart Re-enable it, click OK, restart again
• Used .NET Framework Repair Tool

What Should Happen?

Claude should have created the task sucessfully

Error Messages/Logs

Steps to Reproduce

schedule task to summaries importnat emails at 8pm in Claude Cowork

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.11187.4

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

<img width="596" height="130" alt="Image" src="https://github.com/user-attachments/assets/3f503752-28c9-4d87-aa6d-199b61d00918" />