It appears to be coming from one of my Parallels Desktop for Mac installations via my iCloud Desktop sync. I say this because it is showing up on a Mac that does not have Parallels installed. What are the settings that I need to select on each of VMs on each of my Macs to keep this folder from appearing? The current versions of Parallels, Windows 8.1 and/or Windows 10, and macOS are installed throughout.