一、问题：安装TortoiseSVN时报错：please install the universal crt first.You can install it via windows-update(Kb2999226).or you can manually download it from Microsoft by doing a search for ‘universal crt download’

二、处理：在https://www.microsoft/zh-cn/download/confirmation.aspx?id=49062下载windows-Update(kb2999226)