I cannot install GSX via the Installer because it installs the files first in Appdata Local but it forget to move the files after installing to the right folder. I mean, after "installing" the temporary files will be deleted!!
The Installer surely doesn't "forget" anything. The files that are being downloaded are first decompressed in their final destination ( the "Addon Manager\MSFS" folder ) and THEN are deleted.
If a problem happened during the decompression, it would surely show some error message. The most common issues that can happen during decompression are:
- Not enough space on the drive that holds the Windows temporary folders. While you are free to install the Addon Manager on any drive of your choosing, the files being downloaded will always use the windows temporary folders during the installation, so if you are really low on space on that drive, the decompression might fail, but of course some error will be displayed.
- The antivirus might interfere, blocking the files while their are uncompressed. Configure the antivirus to add the whole Addon Manager folder to the antivirus Exclusion to fix this.