1) Start FSX and select SETTINGS
2) Select “Scenery Library”
3) Click “Add Area”
4) Doubbleclick “Addon Scenery”
5) Follow instructions in image
6) If all is OK then it should look like this:
now click OK
7) Now you should see the new area added
Click OK and yore done
Now select your newly added area in “CURRENT LOCATION” and fly !