Clean install of Windows 10. Other computers on the LAN (W7 desktop, W10 laptop) cannot save or copy anything to the desktop of the new W10 computer. Any attempt to copy something to "\\NewW10\c\Users\XXX\Desktop" fails with the message "You need permission to perform this action". Any attempt to save something fails with the message "You don't have permission to save in this location. Contact the administrator to obtain permission.
Using the "Security" tab on the desktop folder, I've given full control to : Everyone, Authenticated Users, SYSTEM, myself, Administrators and Guests. That didn't help.
I eventually created a share of the desktop and I can save to that OK??? So, if I try to copy/save from another computer on the LAN, and use the share of the desktop then it works OK, but if I navigate directly to the desktop it fails.
I'm completely out of ideas. Anyone seen this sort of thing before?