请参考以下步骤:
1.删除%temp%文件夹
2.用管理员身份从命令行运行visual studio
的安装程序来创建visual studio
的安装日志

3.打开%temp%文件夹,应该会有vs_community_ENU_bootstrapper.log这个日志文件存在,打开日志你会发现例如“Failed
to download bundle:
http://go.microsoft.com/fwlink/?LinkId=xxxxxx&clcid=xxxxx".”
差不多在第四行。
4.复制这个链接到浏览器,手动下载安装。
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