Win7 安装.net framework 4.0 失败,错误HRESULT 0xc8000222解决办法 单独安装.net framework 4.0,结果还是失败,出现HRESULT 0xc8000222错误代码, 去官网上查找,发现作如下操作步骤即可 This behavior may occur if the temporary folder of Windows Update has been corrupted. We can refer to the following steps