ORIGINAL: rc300xs
Worked fine until I added a custom airplane and saved it to C:\Program Files\RealFlightG4\Data instead of the correct directory of C:\Program Files (x86)\RealFlightG4\Data. Once I realised my mistake I moved the file. Hasn't worked since. I have uninstalled realflight and reinstalled with no luck.
How did you do this originally?
Did you use the built in file installer ( as you should have ) in which case the file should have ended up in the right place.
If not, then it is likely there are references now to the wrong folder.
Uninstall G4 & reboot.
Log in as an administrator and turn on viewing of hidden files and folders.
Remove any and all Realflight related folders in appdata and other hidden folders.
Also delete any realflight folders in your user home directory.
Log in as yourself and re-install.