Robin
First check whether this file exists in this folder, and what type it is. Maybe it’s a directory, then you need another command for removing it…
Command for checking:
ls -l /home/asus/Desktop
Be aware in case you have set your system language to something different from English, this “desktop” folder is called differently. In this case it is translated, so you possibly have to replace the word in your shell commands respectively.
Once you have located the file in its correct place, and checked its type and permissions, you probably will be able to remove it.
Files of a size of zero bytes are not necessarily ghost files, a simple and freshly created text file with still no content also will have 0 bytes for example.
Windows is like a submarine. Open a window and serious problems will start.