Downloading and using cracked versions (unauthorized modified installers) of high-end engineering software like Solid Edge involves several serious risks:

Eligible early-stage startups can apply for a free annual subscription. Solid Edge ST6 Highlights

If you are looking for alternatives to Solid Edge ST6, there are several options available, including:

If you're interested in using Solid Edge ST6 long-term, consider purchasing it directly from Siemens or an authorized reseller.