Follow the on-screen prompts to choose your installation directory (default is usually C:\ADCDA2 ).

This usually means the Sentinel drivers aren't registered correctly. Re-run the driver setup and ensure your antivirus hasn't deleted the emulator files.

If prompted with a "Sentinel Key" error, ensure the drivers from Step 3 were installed correctly and that your system date is set correctly, as some versions are sensitive to regional time settings. Troubleshooting Common Issues