The My Documents and Recycle Bin icon in my desktop gone after I backup registry for scanning issues.
Sounds really strange...
They are special folders and perhaps have become unregistered in the Windows registry. Perhaps DJLizard's Dial-a-fix can fix it.
Or in 'Control Panel->Appearance and Themes->Display->Desktop->Customize Desktop' they've become unticked, well that can get the My Documents folder back however there isn't an option to hide/unhide the Recycle Bin.