By using this trick tou can hide your whole desktop. This is an amazing trick. To do this follow these steps........
Step1. Go to Start>Run & type here regedit then hit enter
Step2. Now find this key in registry editor
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Step3. After finding the key create a DWORD value in right side panel NoDesktop (case sensitive) and type REG_DWORD then give it value 1.
Step4. Now close registry editor and restart your computer to see the effects.