The translations comes across as:
I goes directly from the SD card and exports directly on my hard drive
Do you mean "import" rather than "export"?
If you mean import, then yes there will be less space on your hard drive whenever you import photos. It sounds like you need to buy a new hard drive for your new photos.
Also, Lightroom creates previews of your photos which will take up some space, but I doubt that would account for going from 11 to 1.9 GB.
No, let me explain again:
I directly import the picture from the SD card on Ligthroom and then, from Lighroom (when I edited them) I export them directly on my extern hard drive. So none of them are actualon the computer, you know what I'm saying? So my question is: Is there a "hidden file" or something that actually keep the picture you edited on Lightroom even tho you didn't copy any of them on your computer?
Sorry I'm not a english speaker so I don't know if that makes sense to you, but thank you for your help!
I directly import the picture from the SD card on Ligthroom and then, from Lighroom (when I edited them) I export them directly on my extern hard drive. So none of them are actualon the computer, you know what I'm saying?
When you import photos, they wind up on one of your hard disks, and the default is your internal hard disk. That is why the free space on the internal hard disk is disappearing.
There are many ways to fix this, including moving the photos to a different disk (but you have to do it properly so Lightroom will know you have moved them), or just importing the photos to the external HD.
The export process does not export the original image, but rather exports a copy to your external hard drive. Lightroom does not modify your master images. They are always left in the same condition they were in when they were downloaded from your camera. You should probably import your images to a folder on your external drive. It might be a good idea is to have more than one external drive.