: 32-bit versions are limited to 2 GB RAM/16 GB disk; 64-bit versions are recommended for larger calculations. Gaussian.com Installation & Updates
Tell me which version you are currently running and the specific error you're seeing, and I can help you find the correct solution. Waseda University MSE (en) » Gaussian gaussian 16w download upd
Improved parallel performance for large multi-core clusters and optimized memory algorithms for CCSD iterations. : 32-bit versions are limited to 2 GB
: Adding support for new density functionals or improved solvation models. Risks of Unauthorized Downloads : Adding support for new density functionals or
To download or update , you typically need to access the installer through your licensed organization's internal portal or use the original installation media (DVD). Gaussian is commercial software and does not offer a public "click-to-download" update feature; instead, updates are managed via their Maintenance Program or provided directly to license holders. Update and Download Options
For over four decades, Gaussian, Inc. has provided the computational chemistry community with one of the most powerful and widely-used software suites for electronic structure modeling. Gaussian 16 (the latest major version as of the last decade) represents the culmination of decades of quantum chemistry research, offering methods ranging from Hartree-Fock and Density Functional Theory (DFT) to high-level coupled cluster calculations.
Note: Gaussian 16W is strictly a 64-bit application. It will not run on legacy 32-bit Windows systems. 4. Step-by-Step Installation Guide for the Update