Microsoft Windows issues

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Some Microsoft Windows issues that often appear and their cure is described in detail in this article.

Cant locate data files after installation

Note  The default location of $FG_ROOT, is the path of your installation directory. Examples are here $FG_ROOT. If you changed your installation directory during install of FlightGear then use that path instead

After a first time install and upon running FlightGear for the first time you see this dialog

Error box for FlightGear when it does not know the location of the correct data files


Tell FlightGear where to find the data files that were installed. I present here 3 options. Whichever you choose, make sure you update the PATH according to your installation directory

  • Choose Folder and point it to $FG_ROOT
  • Paste these 3 lines inside of Notepad.exe, or some other editor, save as fg-root.reg file to desktop, then double click the file and add the entry to registry
Note  Yes, you need the double \\ in the path
Windows Registry Editor Version 5.00 
"fg-root"="C:\\Program Files\\FlightGear 2016.1.1\\data"
  • Open up regedit and add fg-root Key as a string value of $FG_ROOT

Known TerraSync issues

1rightarrow.png See TerraSync#Troubleshooting for the main article about this subject.

Some common issues are error messages about:

Related content

  • FAQ – Answers to some other common questions