Install WinOLS 4.7 inside the virtual machine. It will run indefinitely without throwing the system date error. Summary Troubleshooting Checklist Error appears on startup Current year is past the hardcoded license window Roll back system clock or use Internet browsers stop working Manual date rollback breaks SSL certificates Revert system clock and transition to Method 2 Error remains after date rollback Registry contains an expiration flag Delete the EVC registry keys and reinstall

Enter a name in the field (e.g., "WinOLS 4.7 Fixed"). Click Create Desktop Shortcut . Always use this new shortcut to launch the program. Method 2: Manual Date Rollback and Internet Disconnect

If you are an automotive tuner, ECU calibration specialist, or a hobbyist working with engine control units, you are likely familiar with . It is the industry-standard software for reading, modifying, and remapping ECU files.