If you cloned your hard drive to a new disk (same data, different physical drive), the volume serial number may change, triggering the error even though the OS and files are identical.

A: The software checks the dongle at every startup. If the dongle is not recognized due to driver or hardware changes, it will prompt for it.

Follow these troubleshooting steps in sequence to re-sync your hardware configuration with the software licensing system. Step 1: Clean and Update Sentinel HASP Drivers

Before making any major hardware upgrade on your shop PC, always launch Autodata 3.45 with the dongle inserted. Then, without closing the software, perform the hardware change. Sometimes the software stays bound dynamically until reboot. This tiny trick has saved many technicians from this exact error.

Then, the crash.

Ensure the matches the one generated by your specific license activator. 4. DEP (Data Execution Prevention) Exclusion

The software will display a new 8-digit or 10-digit alphanumeric code representing your updated hardware ID.

The software utilizes a Sentinel USB security key (dongle) to prevent unauthorized access. This protection operates through a "pull" communication model where the software reads specific security data from the physical token.

The Windows Registry entries that store the license key have been wiped or altered.

Restart your machine to ensure registry changes take effect. Solution 2: Reinstall Sentinel Drivers (SNTLKey)

Autodata 3.45 remains a popular, legacy version of the comprehensive automotive technical data software, prized by mechanics for its extensive coverage of repair, maintenance, and wiring diagrams without requiring a monthly subscription. However, because it is a legacy, "pre-activated" or emulator-driven software, users often encounter the frustrating error message:

: Antivirus software often flag virtual dongle signatures as false positives and delete them.