Even with a legitimate download, issues occur. Here is a troubleshooting table.
| Error Message | Probable Cause | Solution | | :--- | :--- | :--- | | “Hardware key not found” | USB dongle not inserted or driver corrupted | Reinstall Sentinel driver. Try a different USB port (avoid USB hubs). | | “Cannot connect to instrument” | Wrong COM port or Windows 10 driver signing | Boot Windows into “Disable Driver Signature Enforcement,” then reinstall drivers. | | “Setup requires .NET 3.5” | Windows 10/11 doesn’t have it enabled | Control Panel → Programs → Turn Windows features on/off → Enable .NET Framework 3.5. | | “File is corrupted during download” | Interrupted HTTPS download | Clear browser cache and re-download using a download manager. Verify SHA-256 hash with Shimadzu support. | | “License expired” | Time-limited trial or node-locked license | Contact Shimadzu to renew or transfer license to a new PC. | Uv Probe Software Download Shimadzu
Before you download, ensure your PC meets these specifications: Even with a legitimate download, issues occur
Assuming you have obtained the official installer from Shimadzu, follow these steps. Before you download, ensure your PC meets these