win10无网络安装.Net Framework3.5
1.外网机器下载win10ios
2.解压ios 复制source/sys文件夹到内网机器,C:\Users\Downloads\sxs
3.以管理员身份运行cmd
4.执行命令 Dism /Online /Enable-Feature /FeatureName:NetFx3 /Source:C:\Users\Downloads\sxs /LimitAccess
5.等到进度为100时候,即可完成安装
所需要的sys文件:在本人上传的资源中下载
https://download.youkuaiyun.com/download/qq_28019809/12050532