You should not have to uninstall a program to remove its desktop icon. I don't know why it's not possible to delete it the normal way, but this worked for me:
1. Press Start, type cmd, right-click on Command Prompt and Run as administrator.
2. Enter these commands:
cd \users\public\desktop
dir [you should see the shortcut listed]
del "TurboTax 2020.lnk" [yes you need the quotation marks]
The icon should be gone. You can still start the program by pressings Start and typing turbotax.
