what do you want to do exactly ? do you want to update the patch that was already installed by visual studio installer.
Please elaborate so that we can help you better in order to resolve the issue
may be following link will help you to resolve issue
https://support.microsoft.com/en-us/help/278686/how-to-update-a-visual-studio-installer-package
Thanks
Koolprasd2003
Editor, DotNetSpider MVM
Microsoft MVP 2014 [ASP.NET/IIS]