8.1.21.92更新内容：
- You can use the touchpad to click
- On phones, the Apps tab in the Connection center shows apps in a grid view (instead of a list)
- Error 0x3000008 where a feed publishes but you can't successfully connect to any resource going through gateway
- Feed download continues to show progress bar and doesn't finish
- Error 0xb08 when you log off from Windows Home Server 2003