| Source | Legitimacy | Risk Level | Notes | |--------|------------|------------|-------| | Original installation CD | Fully legal | None | Best option. | | Your Nuance account (if purchased digitally) | Fully legal | None | Only if you saved login credentials from 2010-2015. | | Third-party archive sites (e.g., Internet Archive, OldVersion.com) | Gray area | Moderate | Verify file hash and scan with antivirus. | | Peer-to-peer/torrent | High risk | High | Not recommended; often bundled with malware. |