FS4 install size PC

777Driver · February 4, 2026 at 9:13 PM

Is the Steam version around 220GB? I don't remember it being that big. Would that include the additional Europe 1 & 2 + America? From memory, I installed those separately. Am trying to decide the best drive to use for FS4, I have a huge amount of scenery addons to reinstall afterwards, I pretty much had all the major downloads from flightsim.org.

Am also thinking of putting steam on the root drive away from my primary M.2 drive; D:\Steam for example, i cant think of a reason that would be bad, but best to check.

Wingberry · February 4, 2026 at 9:25 PM

You don´t need to download Europe or the US DLC´s as they have the same data, which are now streamed through global scenery. My game size is 62 GB, but more than half of it are 3rd party addons (mostly higher quality images or elevation).

777Driver · February 4, 2026 at 9:32 PM

Thanks for the reply. Hmmm, this is a fresh install of Win11, only steam installed, and FS4 is definitely installing 200+ gb of something.

Wingberry · February 4, 2026 at 9:56 PM

If you are installing Aerofly now, try to open Steam go to library, right click on Aerofly and press Properties. The menu pop up, go on DLC page and unclick those 3 map DLC

777Driver · February 4, 2026 at 9:59 PM

Ok, that explains the huge size. I think I'll keep it, just incase network goes down in the future. Plenty of space, this PC is just for FS4 and FS2020/24

Thanks for your help, mate

Tomfa · February 4, 2026 at 10:33 PM

One thing to add, perhaps unimportant to some, is that without the Europe 1 DLC, one airfield (EDGM) won't install. I have no idea why; I've never received a response from IPACS.

However, there is a workaround: you can temporarily install Europe 1, then copy that airfield to Documents\Scenery\Airports\de\edgm. Afterward, revert to uninstalling Europe 1.

This was just one example; there may be other affected airfields. Worth seeing...

777Driver · February 5, 2026 at 12:18 PM

Is there a way to safely copy the gc-map.mcf? file (my bindings) I can rebind my Airbus thrustmaster throttle and Sidestick, but keybinds never came over despite copying the file. is it because the device unique ID has changed on this new build?

ApfelFlieger · February 5, 2026 at 12:32 PM

The gc-map.mcf is a text file and can therefore be edited with a text editor.

In comparable cases, I do it in such a way that I first create a backup copy of the gc-map.mcf. Then I look at the data in the gc-map.mcf, possibly reset all controllers and see what happens then etc.

An example is my controller for helicopter. It was easier and faster for me to make the fine-tuning directly in the gc-map.mcf than via the FS 4 menu. I have also saved these values as a backup and can insert them back into a gc-map.mcf at any time.

777Driver · February 5, 2026 at 12:42 PM

Thanks, Michael, yes I checked the contents before posting. I thought my method would be simple, I backed everything up from my old install, made sure a clean version of FS4 is running correctly on the new version of Win11, tested VR is working. Now I am copying scenery back and all my tweaks. I copied that gc-map file back into the correct user documents, none of my bindings came through.

I can remap, just a pain in the rear, since my voice control mod needs exact bindings, so will have to go back through each 1 by 1

That Windows update really messed things up for me, I couldn't even roll back to a working state

ApfelFlieger · February 5, 2026 at 2:07 PM

I'm not on the PC right now, but from memory it should be enough if you copy the old content into the new gc-map.mcf and then only customise the controller IDs.

777Driver · February 5, 2026 at 2:28 PM

Cheers, it looks like it might actually be faulty memory slot or something up with the motherboard... The exact same CTD just happened again on a fresh build. Time to go out and enjoy nature!

Thanks for the help, everyone,

FS4 install size PC

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