| Problem | Likely Solution | |---------|----------------| | License key invalid | Copy-paste exactly (no spaces). Ensure you downloaded correct version for your OS. | | "License expired" immediately | Your trial may have been started months ago on the same machine (IBM stores a hidden license file). Uninstall, delete C:\ProgramData\IBM\SPSS (Windows) or ~/Library/Application Support/IBM/SPSS (macOS), then reinstall. | | Cannot activate offline | Trial requires internet at least once every 14 days. If no internet, contact IBM for offline trial (rarely granted). | | SPSS crashes on launch | Windows: Run as Admin and disable antivirus temporarily. macOS: Allow app in Security & Privacy. | | Charts look blocky | Update graphics drivers (Windows) or ensure Retina scaling is set to default (macOS). |