Answer: C:\ProgramData\erwin\Data Modeler\9
Please install r9.7 erwin as Administrator. Then run erwin. When the licensing window comes up (figure 1), select use local license. Press Install license file and browse for the license file you received from technical support or other source. That will move the license file into the correct directory.
Having done the above, then press OK on the licensing window and erwin will come up. Check the Help | About screen (figure 2) to verify that you have the correct edition and version properly licensed.