This article provides a definitive, step-by-step guide to diagnosing and resolving the , whether you are on version 9, 10, 2020, or the latest 2024/2025 releases. What Does "AutoData 345" Actually Mean? To fix a problem, you must understand it. AutoData (now part of Solera/Identifix) uses a physical USB dongle (a hardware lock) to prevent software piracy. When you install AutoData, the software generates a unique "hardware fingerprint" based on your computer’s components (hard drive serial, motherboard ID, network card MAC address).
Start with the , then move to deactivation/reactivation, and finally a clean reinstall. Only in rare cases of dead dongle hardware will you need a costly replacement (approx. $150–$300 depending on your region).
Remember: AutoData's dongle system is designed to protect the livelihoods of software developers. By working through the official channels, you respect the license and keep your workshop compliant.