Installation in steam version does not work

[Carlosbecerra]

I want to install on a steam version, the error is the one shown,
the installation paths are as follows.
steam installation path: D:\Steam
MFS2020 installation path: D:\MFS2020
Navigraph Navdata Beta installation path: “C:\Program Files\Navigraph Navdata Center\Navigraph Navdata Center”

[Ian]

Hi…,

Welcome.

EPERM error results from permissions, likely because you have installed into Program Files directory.

Please install “only for you” so to default %localappdata%/Programs/Navigraph Navdata Center.

Please see Can't Install AIRAC Cycle or Navigraph Charts in Game - EPERM operation not permitted - #5 by rscarter

Cheers
Ian

[Carlosbecerra]

I install only for me so to default

the following image is the download of 1 GB of steam

in the following folder save the following 85 GB

I continue with the same error
MSFS2020 starts normally but Navigraph Navdata Center doesn’t install

[Carlosbecerra]

OK I leave the above as a reference to my problem, I have solved it with the link that you shared, thank you.

Can't Install AIRAC Cycle or Navigraph Charts in Game - EPERM operation not permitted

It was the Navigraph folder in %localappdata%/Temp that was the culprit. When I modified the security settings to that folder to grant full access to all users, the program updated the data in Community. Two folders there were created … Navigraph-ingamepanels-charts and navgigraph-navdata. Thanks for your help and for getting back to me so quickly. If I can return the favor by testing things for you in the future, let me know. Richard Carter, Ph.D 555 Oak Street Indiana, Pennsylvania 15701-1…

[Ian]

Hi Carlos,

You are welcome.

Glad it is resolved.

Happy flying.

Ian