移除 windows 8.1 已安裝的更新

[Q] how to uninstall the installed update on windows 8.1?
[Q] windows8.1 如何解除更新?  (如何移除已安裝的update?)

[try]
0. 先進入Windows Update  [ Control Panel > Windows Update ]

1. 視窗左下角 有一個 Installed Updates 的連結 點下去

2. 視窗改換成顯示已安裝的更新 --> Control Panel > Programs and Features > Installed Updates

3. 選擇想移除的標的,  right-click to uninstall