@ my company, IT controls all the access. They dont have the "traditional" Site/Org Admin accounts. So no, I dont have access to those preferences.
Now, this particular preference referes only to parts. My issue has nothing to do with (wt)parts.
What's weird is that IT "fixed" the problem that was affecting every user who tried to upload a file last week. Now this week... only one user is having this problem. I believe is Java related.