Something went wrong when I installed 10.35. Most of the default aircraft won't load and I get the error message that there is an "airfoil file" missing. What is the best way to un-install 10.35 and start over?

 

Thank you for your help.

Run the latest X-Plane installer. It will look for missing files and update as needed. Should be no need to uninstall.

Yes, there really isn't anything to "uninstall" other than just removing the folder.  That's rather drastic and unnecessary as @yidahoo points out.

I think you can get away with just your removing the aircrafts folder and running the updater which will reinstall them. However, if worse comes to the worst, just take a copy of your Custom Scenery, Resources/Plugins and Aircraft (Just your addons) folders, reinstall X-Plane, update, and put the folders back in, they'll all hopefully work as before (Except addons requiring activation).

 

I've done this many times when moving between machines and/or losing stuff, and it's always worked. Far quicker than spending a full day reinstalling everything like I once had to do on FSX.

Thank you all for your help. I followed your suggestions and everything is working fine now.