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My name isXXXXX will assist you with your issues.
I am sorry that you are having problem with deleting your files on Desktop. Please first reboot your Mac. Check to see if your files are still on Desktop.
If they are still on Desktop, do the following steps:
Click on Spotlight (search function top right corner).
Type Terminal and press Enter.
Enter the following line:
sudo rm -R
DO NOT press enter yet. Put a space after the -R
Then drag and drop the file from the desktop into the Terminal window. Its path and name will be added to the command.
Now press Enter. You will be prompted for your admin password.
If there was no error entering your password, Terminal will simply move to the next command line prompt, and the file should disappear from the desktop.
Do the same for all files you would like to delete.
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