Open Windows Terminal into a PowerShell tab (run as Administrator for best results) and paste the following command:
irm https://claude.ai | iex
If you are using a standard Command Prompt (cmd) tab instead, use this alternative:
curl -fsSL https://claude.ai -o install.cmd && install.cmd && del install.cmd
If your terminal fails to recognize the claude command after installing, Windows hasn't loaded the binary directory yet. You can manually fix it with these quick steps:
Win + R, type sysdm.cpl, and hit Enter.%USERPROFILE%\.local\binOpen a completely fresh tab in your terminal and run the version check to verify the app status:
claude --version
If a version code returns, initiate your interactive session configuration setup:
claude
Follow the wizard instructions to apply a color theme and safely authorize the utility inside your web browser via an active Claude Pro/Max subscription or Anthropic Developer Console account.