November 05, 2017, 05:58:46 am
Hi stkman87, welcome.
That error message usually means that security software on your computer isn't letting the Lumion installer complete the installation.
To resolve the problem, you should temporarily disable your internet connection and your anti-virus software. Then immediately enable Windows Defender, right-click on the Lumion installer executable file (.exe) and select 'Run as administrator'.
Does this resolve the problem?
(When you're done with this test, please enable your own anti-virus software again)
We/Act-3D B.V. cannot be held responsible or liable if the steps above result in damage to your computers/software/network from an outside or unknown virus entering your system.