| Approach | Risk Level | Cost | Legality | Effectiveness | |----------|------------|------|----------|---------------| | Official purchase | None | $ | Legal | High | | Legitimate giveaway | Low | Free | Legal | Medium (temporary) | | Free key from forum | High | Free | Illegal | Very low (mostly fake) | | Crack/keygen download | Very high | Free | Illegal | Works sometimes, but dangerous | | Windows Update | None | Free | Legal | Medium | | Manual manufacturer download | None | Free | Legal | High |