Here's the problem:
I'm using a Macbook Air mid-2011, 13 inch model with 128GB.
I spent the last few hours reading about this, both here and Apple's community forum, and I've heard that local backups delete themselves after the hard drive's free space reach a certain percentage, but that didn't happen on my configuration.
-I tried to disable Time Machine from the Settings. It didn't work.
-I tried the "sudo tmutil disablelocal" command, and while it hides the mobilebackup directory, the main hard drive does not gain space.
-No .mobilebackup.trash file appears when I use the sudo command I mentioned and using "sudo du -d 1 -x -c -g /".
-I don't know if it helps, but the first time I noticed this was a few months ago when I was deleting my Windows bootcamp from my Macbook. I remember I removed Windows because that OS somehow broke down and gave a error.
Thanks in advance and if there's any info missing, please tell me and I'll try to post it.

I'm using a Macbook Air mid-2011, 13 inch model with 128GB.
I spent the last few hours reading about this, both here and Apple's community forum, and I've heard that local backups delete themselves after the hard drive's free space reach a certain percentage, but that didn't happen on my configuration.
-I tried to disable Time Machine from the Settings. It didn't work.
-I tried the "sudo tmutil disablelocal" command, and while it hides the mobilebackup directory, the main hard drive does not gain space.
-No .mobilebackup.trash file appears when I use the sudo command I mentioned and using "sudo du -d 1 -x -c -g /".
-I don't know if it helps, but the first time I noticed this was a few months ago when I was deleting my Windows bootcamp from my Macbook. I remember I removed Windows because that OS somehow broke down and gave a error.
Thanks in advance and if there's any info missing, please tell me and I'll try to post it.