To hide the icons on your desktop first open terminal and type (or copy) this: defaults write com.apple.finder CreateDesktop -bool false
Then type: killall Finder
Your icons should be gone now. If they aren't check that you typed the code correctly.
If you want your icons back type this: defaults write com.apple.finder CreateDesktop -bool true
Then: killall Finder
Your icons should reappear. Note: I'm not responsible for any damage caused to your Mac from this tutorial.
