Mac Keylogger FAQ
If you have just purchased MacKeylogger and received a license key and download link, but an unlicensed copy of MacKeylogger is already installed on your Mac, you must uninstall MacKeylogger and then install your new download. During installation, you will enter your license key in the Registration dialog box.
For instructions on uninstalling MacKeylogger, see How do I uninstall MacKeylogger? For instructions on installing MacKeylogger, see How do I install MacKeylogger?