:: http://sumtips.com/2012/04/reset-windows-7-taskbar-pinned-items-toolbars-jump-lists.html

REG DELETE HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Streams\Desktop /F

DEL /F /S /Q /A "%AppData%\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\*"

REG DELETE HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Taskband /F

DEL /F /Q %APPDATA%\Microsoft\Windows\Recent\AutomaticDestinations\*

DEL /F /Q %APPDATA%\Microsoft\Windows\Recent\CustomDestinations\*

taskkill /f /im explorer.exe

start explorer.exe