Click OK; 
2, expand in turn: HKEY _ Local _ Machine Software Microsoft Windows CurrentVersionExplorerDesktopNamespace: 
3, and create a new item under this directory: {645ffo40-5081-101b-9F08-00aa002f954e}; 
4. Click the new item.
Click OK; 2, expand in turn: HKEY _ Local _ Machine Software Microsoft Windows CurrentVersionExplorerDesktopNamespace: 3, and create a new item under this directory: {645ffo40-5081-101b-9F08-00aa002f954e}; 4. Click the new item.
