Most likely this is happening because you don't have sufficient rights on your machine.
Solution 1: Run the application as an administrator.
Use the windows explorer to navigate to C:\program files\HIPAAsuite\HIPAA_ProductName\HIPAA_ProductName.exe
Right click the executable and click on "Run As Administrator".
Follow the same steps to activate the key. Be sure to choose “Activate my License Online”
Solution 2: Even administrators do not have sufficient rights to write to Windows.