Deltacopy (client at least) works fine on Windows 10. However, the automatic schedule it creates no longer works. Despite DC properly checking the box for Run With Highest Privileges, a Microsoft update on or around Sept 1, 2016 broke scheduled tasks created with the old XP/2003 API. You'll need to go into task scheduler and change it to a Windows 10 scheduled task ("Configure For" at the bottom). It will work, but DC will no longer be able to see that it is scheduled.