If you specifically want Norton products, the safest route is to check the official Norton website for their latest legitimate versions or trial offers.
Type "Disk Cleanup" in your start menu to remove unnecessary system files.
Pirated software doesn't receive security patches, leaving your system vulnerable.
Instead of looking for a "crack" for a 2015 version of Norton, here is a more helpful and secure way to optimize your PC: 1. Use Free, Safe Alternatives