If you receive an error message while deploying an Application Pack which states, "The Application Pack is not applicable to this Computer", this indicates that one or more Filters exist in the Application Pack which are trigger on that specific endpoint.
This error can commonly occur if you use an Application Pack which filters based on the name and version of an installed application, and a current or newer version of the application is already installed on the target PC.
Please note, if you use the Application Pack Wizard, product name and version filters are added automatically
See section 4 in this article for details on adding filters manually:
Create a Custom Application Pack (Advanced)
Filters can also be added to individual tasks in Application Packs.