更新Visual Studio 2017 15.6.2时出错

Question

我试图将VS 2017更新为15.6.2版本。像往常一样，VS让我更新安装程序。但安装程序更新失败，现在，当我尝试再次启动VS更新时，我收到此错误消息：

  

加载vs_installershell.exe时出错：主题中没有签名。

以前有人见过这个吗？任何帮助将不胜感激。

Answer 1

Microsoft recommends the following procedure in this case:

1. Close the Visual Studio Installer.
2. Delete the Visual Studio Installer directory. Typically, the directory is C:\Program Files (x86)\Microsoft Visual Studio\Installer.
3. Run the Visual Studio Installer bootstrapper. You may find the bootstrapper in your Downloads folder with a file name that follows a vs_[Visual Studio edition]__*.exe pattern. If you don't find that application, you can download the bootstrapper by going to the Visual Studio downloads page and clicking Download for your edition of Visual Studio. Run the executable to reset your installation metadata.
4. Try to install or update Visual Studio again. If the Installer continues to fail, go to the next step.

There is also a bit of warning:

Performing the following actions reinstalls the Visual Studio Installer files and resets the installation metadata.

But in the end, it reinstalls the VS Updater.

Source: https://docs.microsoft.com/en-us/visualstudio/install/troubleshooting-installation-issues