regsvr32 /u /s igfxpph.dllreg delete HKEY_CLASSES_ROOT\Directory\Background\shellex\ContextMenuHandlers /freg add HKEY_CLASSES_ROOT\Directory\Background\shellex\ContextMenuHandlers\new /ve /d {D969A300-E7FF-11d0-A93B-00A0C90F2719}
要从控制面板删除,才是彻底删除了