instalace macOS sierra wont delete
I am currently running Mojave and trying to create some room in my storage. I have a file called "instalace macOS Sierra" that is 4.7gb. I'd like to delete this but my system won't remove it. (I don't get any error message it just won't move to trash) Just curious if theres any reason why I shouldn't delete this? and if it's ok to delete how do I get rid of it?
Thanks
MacBook Air