Hello, there, sir.
What Ansys you have in hand?
I had the v15, and I am using the v10 (there is module there that does not crash in my machine, so I need to use this old version) I both I managed to use an "student" license, and editing some entries of the root I did a crack.
However, I also know the crack procedures, easier to use, which I would use to explain you.
Let me know.
Thank you.