install normaly ansys. then launch the "setup licence" it will look for a licence file in a folder named "Licencing".
The licence file you can get it from a folder named "magnitude" where you can find aansys.dat file. Open it with notepad and then change the name of your computer and an adress.
you will get these information from "WinHostId".
when finshing this change, you execute "keygen" this will run a licence.dat file. Copy and paste it in the licencing file and wait for the end of installation.
then you have to go to the environmental variables and create a new one:
ANSYSLMD_LICENSE_FILE = 1055@host
host will be the name of the you computer
click ok