Before we go ahead, rebooting the computer and clearing temporary files may not help. It has been reported several times, and that may not work. So follow these suggestions: Launch Steam with Admin ...
Users with external hard drives or other storage devices may run into problems accessing files on these devices, especially when attempting to delete files that are reported by Mac OS X to be "locked" ...
If you, too, face a similar problem, first, restart your computer and see if you can delete it. If not, here are a few things you could try. Go to the desktop folder/s and try deleting from there. You ...
OneDrive's April Roadmap updates include sensitivity labels for Office files, the ability to view and restore older versions of files through the desktop, and the option to delete locked files.