DotNetNuke Installs and Upgrades need to be Unblocked before Installing

Installs and upgrades to DotNetNuke (DNN), and to DNN modules, are packaged as .zip files. 

When a zip file is downloaded to a Windows machine it is often 'blocked' as a security measure.  Before you install; right click on the zip file, choose Properties, and look in the General tab.  At the bottom you may see the text "This file came from another computer and might be blocked to help protect this computer."  If you do see this text click the Unblock button next to it.

Using a file that is blocked may result in some of the contained files not being unpacked when the zip file is expanded.