But how much space do you have on your computer?
I advise you to delete temporary files, which are in %temp% and temp, just access the "windows run" Windows + R
I also recommend accessing "My PC" click on the disk and go to properties, and click on "disk clean". (Automatically this will erase all useless files and files that have already been deleted left on the disk)
I've done it. After restarting my computer, it miraculously gained a gig of storage. I don't know how and am kind frustrated as to why it's so inconsistent, but am not complaining. I deleted the temp files, except the ones that needed admin permission, and now I have almost 7gb. I still don't know what was eating up the storage, but the more I played the game, the more it was eating it up. I'm not trying to dog on your game, but something ain't right. Of course, it could always be something on my end, but definately something to keep in mind.