I have installed MSFS on drive D. The base sim and the extras all were pointed to D. On C it also installed part of the game including a duplicate Community folder and Official folder. Is there a way to get all the files on D, or at least delete some of the duplicate files on C like the Community folder and Official folder ?

It's normal and the Community and the other folder are empty on drive 😄 cannot be deleted. 

On C the localcache/simobjects/airplanes folder is full but each airplane folder only has the text State. Just strange that these other folders exist.

40 minutes ago, warbirds said:

On C the localcache/simobjects/airplanes folder is full but each airplane folder only has the text State. Just strange that these other folders exist.

Perhaps it is there to offer third parties a fixed location to store aircraft-related data where it has write-access.
Another possibility is to allow multiple users on the same PC use flight simulator and to have each user his/her own settings, including the state of addon aircraft.

If you move the game off the C drive, using the Windows app manager:

you finish up with this:

Thanks but I am installing, not moving

 

As far as I can tell, the game puts less than 2 GB onto your C drive, and then you can choose where the rest of the files go.
Once it is all installed, you can then move the game to where you want it, at least that's what I did and it is still working after just the one installation.

Edited June 29, 20223 yr by Reader

There is only one community and one official folder used by the sim. The other community and official folders can be safely deleted. The run box used in administrator mode might be needed to delete some folders using the DEL command. But DEL will delete what you tell it too, including everything off your main drive if you aren't careful which directory you are in before running that DEL command. 

23 hours ago, warbirds said:

Thanks but I am installing, not moving

 

Moving the MSFS app has its own risks and I would advise against it.

A year ago, I had to do a systems restore some time after "moving MSFS" off the C drive and totally lost MSFS in the process.

A "move" creates links which get broken if you use the Windows Restore function.. 😟

Better strategy is to install MSFS on a separate drive initially, but leave the C drive files alone, and just let MSFS do what it wants with them. On my system, they amount to less than 20 MB. 😉

Edited June 30, 20223 yr by Bert Pieke

Moving any complex software, can be a recipe for disaster. 

In this case, the only recipe for disaster is moving the files and then running Windows System Restore without setting
a new restore point, which, if the instructions are read, does what it says on the tin, it restores an earlier version.
It is designed to undo changes, and if the change was to install MSFS, then the result is entirely predictable.
This is much the same as saying that running a process is dangerous because if you then delete the process, it doesn't work.

Regardless of this, the OP has already dismissed the advice, despite the fact that it is the solution in this case.

3 hours ago, Bert Pieke said:

 

 

Better strategy is to install MSFS on a separate drive initially, but leave the C drive files alone, and just let MSFS do what it wants with them. On my system, they amount to less than 20 MB. 😉

Best advice, this I will do, thanks Bert. 

Although you may choose to dismiss this advice also, one way to end up with "duplicate" Community and Official folders,
is to install MSFS off the C drive and then, at the time of one of the many updates, allow the update to install the entire simulator
into the default location, which is on the C drive.

Edited June 30, 20223 yr by Reader

20 minutes ago, Reader said:

Although you may choose to dismiss this advice also, one way to end up with "duplicate" Community and Official folders,
is to install MSFS off the C drive and then, at the time of one of the many updates, allow the update to install the entire simulator
into the default location, which is on the C drive.

I think you may be mistaken on this... The default location may well look like it is on the C drive, but the update will go to wherever the sim is actually installed.  The default location has links that (invisible to you) point to the correct location.

It has been reported many times in these forums that following an update, the user has complained that following
an update, they have seen a large download, much greater than the update should be.
Normally these reports are followed by a complaint that all addons have vanished.

The explanation for that is that the update has been allowed to go to the default location, which is indeed 
C:\Users\User Account Name\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe.

Because the user has installed the main files somewhere else, the installer replaces what it sees as the missing files,
resulting in a new and clean installation.

If MSFS was correctly installed onto a different drive, there would not be Community or Official folders on the C drive at all,
as reported in the OP of this topic.