1. Allow Scripts in PowerShell (Run as Administrator)

Set-ExecutionPolicy Bypass -Scope LocalMachine -Force

2. Install Claude Code (Normal PowerShell, NOT Administrator)

irm <https://claude.ai/install.ps1> | iex

3. If claude --version Does NOT Work

Check if Claude installed:

Test-Path "$env:USERPROFILE\\.local\\bin\\claude.exe"

If result = TRUE → Fix PATH

[System.Environment]::SetEnvironmentVariable("Path", $env:Path + ";$env:USERPROFILE\\.local\\bin", "User")

Install Claude Code Router (CCR) — Requires npm

Step 1 — Install Node.js x64

Download:

https://nodejs.org/dist/v24.11.1/node-v24.11.1-x64.msi

Step 2 — Install CCR (Global npm)

npm install -g @musistudio/claude-code-router