Once the 30 days expire, the software will display a dialogue box asking if you want to continue using the for personal, non-commercial use. Click I Agree or Migrate to Make to lock the software into its permanently free state. Overcoming Modern Compatibility Issues
Advanced users can verify the SHA-256 checksum of the file against known good values. If the hash matches the original Trimble distribution, the file is 100% genuine and unmodified. sketchup 2017 free version verified