win8无法安装net framework 3.5的解决方法

1. 打开 win8 安装盘,提取 sources/sxs 文件夹到 d:/sources/sxs (或别的盘也行,举个例子);

2. 打开 c:/windows/system32 文件夹,找到 cmd.exe,右击,选择"Run as administrator";

3. 在命令行执行以下命令:

dism.exe /online /enable-feature /featurename:NetFX3 /Source:d:/sources/sxs (就是第一步提取出来的)

大概一两分钟就执行完了,执行结果如下:

Deployment Image Servicing and Management tool

Version: 6.2.8250.0

Image Version: 6.2.8250.0

Enabling feature(s)

[==========================100.0%==========================]

The operation completed successfully.

搞定~~

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