Follow these steps for a safe installation on Windows:
- Download from torproject.org ONLY: Go to torproject.org/download and download the Windows installer. Never download from third-party sites, mirrors, or search engine ads - malicious versions exist.
- Verify the download (recommended): The Tor Project provides GPG signatures for every release. Download the .asc signature file and verify it using GPG. This confirms the file hasn't been tampered with.
- Run the installer: Double-click the downloaded .exe file. Windows Defender may show a SmartScreen warning ("Windows protected your PC") - click "More info" → "Run anyway." This warning appears because Tor Browser isn't signed with a Microsoft certificate, not because it's malicious.
- Choose installation location: The default location is your Desktop. You can install it anywhere, but avoid Program Files (requires admin permissions that could leave traces).
- Launch Tor Browser: Open the Tor Browser folder and double-click "Start Tor Browser." Click "Connect" and wait 10-30 seconds for the Tor connection to establish.