没遇到过。不过这种情况只要百度一下它的错误代码就知道了。 这个是微软官方的解答 http://answers.microsoft.com/en-us/windows/forum/windows_other-windows_update/fresh-windows-7-installation-windows-update-error/16a05548-6f6c-4d86-b5cb-f8abae5afe58 1. Click Start, Run, type: cmd and press Enter. Please run the following command in the opened window. net stop WuAuServ 2. Click Start, Run, type: %windir% and press Enter. 3. In the opened folder, rename the folder SoftwareDistribution to SDold. 4. Click Start, Run, type: cmd and press Enter. Please run the following command in the opened window. 翻译:主要原因是windows update的临时文件损坏 建议重命名该文件夹 步骤 1.开始----- 运行------- cmd ----- 键入net stop WuAuServ回车(停止windows update服务) 2.开始----- 运行----键入%windir%回车(打开系统目录) 3.将SoftwareDistribution文件夹重命名为SDold 4.开始----- 运行------- cmd ----- 键入net start WuAuServ回车 5.可以正常安装.net了