1. Install software and patch
2. Delete any lic file in AnsysEM\admin and copy license.lic to AnsysEM\admin
3. Shut down any AntiVirus software
4. Copy corresponding CrackHFSS15.x(x64).exe to the product main exe file folder
   For example,copy CrackMaxwell16.x(x64) to the folder where the maxwell.exe resides
5. Run the CrackHFSS15.x(x64).exe

enjoy!
