Here is a quick tip on fixing the path for your desktop folder when the easy method of right-click > Properties > Location doesn't work.
Go into the Registry Editor (Start > search > regedit). When Registry Editor opens go to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
Over on the right you should see "Desktop." Double-click the "Desktop" entry. A window will open displaying the value "Desktop" and "Value Data" (the path to the desktop folder). Now, if you want to put in the correct path (C:\Users\Username\Desktop) for your desktop folder or your desired path this is where you would input it then log out and log back in for the setting to take effect.