Pardon me from stealing Fr. Bill's post @ Avsim.... but this turned the light bulb on for me and things working great. Be aware to save backup copies of the folder before deleting... you will want the files later from the exe and dll xml's , orscenery entry's from scenery.cfg.



Be sure you follow the patch instructions, these next steps are critical:

While the uninstaller removes all files that are created by the installer, it does not
completely remove content that was generated during program execution. New versions of Prepar3D use new config file options, etc.

You need to delete these 4 folders(See *** below). You might want to back up your old scenery.cfg or the contents of these folders so you can restore pieces manually if desired.

%PROGRAMDATA%\Lockheed Martin\Prepar3D v2

%LOCALAPPDATA%\Lockheed Martin\Prepar3D v2

%APPDATA%\Lockheed Martin\Prepar3D v2

%USERPROFILE%\Documents\Prepar3D v2 Files

Now you should restart your computer. After your computer has restarted, run the patched Prepar3D v2.2 again and let the system regeneration and recompile those files.

You will need to go back in one by one and re-add your add-ons to the dll.xml and exe.xml to see which one is causing problems, perhaps they have not updated their addons to work with v2.2 yet.

Wes Bard
Software Manager - Prepar3D® Team
====================================
*** How to use the Start button to find those four folders:
  • Click on the windows "Start" button in the lower left corner of your screen.
  • In the empty box at the bottom, paste in this entry: %LOCALAPPDATA%\Lockheed Martin\Prepar3D v2
  • This should open a Windows Explorer window showing one folder named "Shaders"
  • Click on this folder and hit the "Delete" key.
  • Done!

Repeat the above steps for the other three folders listed above!