在安装 VS2015的过程中，有时会出现下面的问题：

在安装过程中，会陆陆续续提醒这些安装程序找不到，SqlDom_amd64 - TSqlLanguageService - CT/AzureMobileServicesSdkV2.0
- Win10_UniversalCRTSDK - Headers Libraries and sources - WcfDataServices - Win81_SDK - SQLSysClrTypes - SQLSysClrTypes_amd64 - SharedManagementObjects_x86 - SharedManagementObjects_amd64。

以下是解决方法：

1. Open certification manager (Win+R -> certmgr.msc)
2. Go to "Trusted Root Certification Authorities" -> "Certificates"
3. Check for:
   • "Microsoft Root Certificate Authority"
   • "Microsoft Root Certificate Authority 2010"
   • "Microsoft Root Certificate Authority 2011".
   • You most likely don't have all of them from some reason.

On other PC that is connected to the internet and receiving Microsoft updates:

1. Check again for these certificates, you most likely see them.
2. Export them to SST file.
3. Import the SST file (that contain the 3 certificates) in the first PC.

Install again, now it will work :-)

I believe that this will also fix some Visual Studio 2013 SDKDDKVer.h and related errors.

win+ r ,输入 certmgr.msc，在受信任的根证书颁发机构里面看是不是少这么几项