If you don't use the Recycle Bin to store deleted files , you can get rid of its desktop icon all together. In Run, type Regedit and go to:

HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/explorer/Desktop/NameSpace

Delete the {645FF040-5081-101B-9F08-00AA002F954E} key in Namespace

Quit Registry Editor

•To get back the Recycle Bin
In Run, Type Regedit
Goto:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace

Right-click the NameSpace point to New, and then click Key.

Type {645FF040-5081-101B-9F08-00AA002F954E}, and then press ENTER.

Click the new {645FF040-5081-101B-9F08-00AA002F954E} key that you created

In the right pane, double-click the (Default) entry.

In the Edit String dialog box, type Recycle Bin in the Value data box, and then click OK.

Quit Registry Editor.