In many cases, people assume they don't have a product key when, in reality, the key is already embedded in their computer's firmware or hidden deep within the system registry. Before trying to bypass activation, try to extract your existing license. Extracting OEM Keys from BIOS/UEFI
The following methods may be used, but again, these may not be in line with software vendor terms: how to activate any software without product key
Students and teachers can access premium software completely free: In many cases, people assume they don't have