Reloading everything lost in a Window’s 11 crash. Fortunately I have X=Plane on an external 5TB hard drive. During the ‘rebuild’ on the C-Drive, I have tried to reinstall my Navigraph data. The install is blocked by Win-Defender. I’ve tried the suggestions from Youtube – No go. If I recall a few years ago when I had this problem, I believe I UNINSTALLED Win-Defender which worked. Win-Defender does not recognize the name Navigraph uses on the EXE program.
Yours is the only report of this issue, so it is likely local. We suggest you disable your antivirus and firewall, redownload and install Navigraph apps.