still can not change files...

[FactionHeir]

You will need to run your medieval game exe using a shortcut or a bat file.
The target of said file should read similar to this:

D:\Medieval\medieval2.exe --io.file_first

Where "D:\Medieval\" varies depending on your installation but medieval2.exe --io.file_first should be constant.

[Bravedude]

Wait, but I got a shortcut on my desk top. and I don't understand how I actually "make" this file, what do I click to make the file to name it "medieval2.exe --io.file_first"

[FactionHeir]

Edit your shortcut.
Its target currently is either the launcher.exe or medieval2.exe
Change to medieval2.exe --io.file_first

[Bravedude]

Edit your shortcut.
Its target currently is either the launcher.exe or medieval2.exe
Change to medieval2.exe --io.file_first

like this?

[FactionHeir]

Err no.
Undo what you did.
Then right click medieval2.exe and choose create shortcut.
Open the shortcut's properties and in the target section add
--io.file_first
after exe, making sure there is a space between the e and the -

[Bravedude]

like this?

[FactionHeir]

Yes. Just make sure that you got 2 - (i.e. --) and that the " is put after exe instead of after first