This site is being deprecated.
Please see the official X‑Plane Support page for help.
Is there a “X-Plane Installer Log.txt” log file to indicate the failure?
The file is written on Windows’ desktop by the Installer (digital install), though I myself have never run the DVD Installer, hence can’t be sure. The Demo Install which Greengolfer mentioned above will definitely produce a log file. Attach it here and perhaps some experts can help you.
This site is no longer being actively maintained.