I have just uninstalled (from default folder set as Progroma files (x86) and re- installed it my Add- ons folder on external memo drive as advised.
Who advised you of that ? And how you did it ? Installing on an external drive is possible, but there are some things to be taken care of:
- If your external drive is formatted as ExFat, you CANNOT install GSX there, because it needs to create Symbolic links to the Addon Manager folder into the Community folder, and the ExFat system doesn't support them so, the ONLY way to use an external drive for the Community folder, is format the drive in NTFS, which is the native Windows filesystem. Most external drives ship formatted as ExFat, so they can be used on PC, Mac and Linux without formatting, but that means you are not using the full capabilities of each OS. NTFS offers better protection against file corruption, and this is particularly important on an external drive, which can lose power simply by disconnecting the cable.
- How you moved the Community folder to the External drive ? The one and only method that works is moving all files from BOTH the Community and the Official folders into a new folder on the external drive, for example D:\MSFS ( assuming the drive is called D: ), so you'll end up with this:
D:\MSFS\Community
D:\MSFS\Official
Once you done that, you must edit this file:
%LOCALAPPDATA%\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache\UserCfg.OPT
Go to the LAST line, and change it as such:
InstalledPackagesPath "D:\MSFS"
This again assumes you placed your Community and official folders there, as in the previous example.
This is the OFFICIAL method to have the whole MSFS Content (both Community and Official ) on a different drive than the one the core program is installed to. Any other method you might have been read about, like creating shortcuts to the Community folder is wrong, it's an hack and will never work correctly in all situations. And this has also the advantage of saving you MORE space on the main drive, because it moves both the Community and the Official folders. There is a reason why is the official method...
After you fixed your MSFS installation this way ( External drive formatted to NTFS and Content moved in the correct way ), first TEST if MSFS works correctly ( if it doesn't, it's because you did something wrong ) and if it does, you can reinstall the FSDT Installer again, and it will show the new destination for the Community folder, and will surely install GSX correctly.