Knowledgebase
Activation Error 15013: This key is invalid or not for this computer.
Posted by Christian Kramer on 2017-09-13 10:32

The error message text is not very good, but the error number 15013 says that you are trying to activate an already activated product again. This error occurs, when you enter the same license key of the current activated license via the license key activation dialog again (normally used for full version activation during trial period).

Note:
Your application is already activated and working. This step necessary. The startup dialog message should already show, that a trial version is activated and the about dialog should display trial version. Further you can can already save and print with his version.