Hi
Welcome to Intel forum. To acquire the free license for Questa Sim Starter Edition, you can request it through SSLC by following these steps.
https://licensing.intel.com/
1) Go to “Sign up for Evaluation or No-Cost licenses”
2) Select Questa*-Intel® FPGA Starter Edition (SW-QUESTA)
3) # of Seats is always 1
4) Check the T&C box
5) Create Computer *license type “FLOAT”
5) Click “Generate” button
The license will be sent to email that you register with
For more Refer the steps here, Guide to generate license file.
Link: https://www.intel.com/content/www/us/en/docs/programmable/683472/23-1/viewing-your-new-licenses-and-generating.html