Step 4 – Add in FSX Scenery Library. Open up the scenery library in the FSX settings, and click on add area.Navigate to the addon scenery folder. Select the folder of the new scenery to be added, and press OK.

This tutorial will walk you through the steps of installing addon repaints/textures in FSX. I’m going to be using the United Express Bombardier CRJ 700 textures in this example. It is helpful to have hidden files and folders , along with file extensions

This is a known FSX bug. There are tons of tutorials across the Internet on how to install AddonScenery. Just click on the Google button in the upper right hand corner and type in "how to install addon scenery into fsx" and you will get thousand