Hi Hextav
I am Dave, I will help you with this.
The Visual Studio installer is a complex piece of software, unlike ordinary installers, it downloads components from many online sources, Community is just a consumer forum, due to the scope of your question (Visual Studio) can you please post this question to our sister forum on Microsoft Q&A (The Developer Forum) in the Visual Studio section (linked below)
Over there you will have access to a host of Developers and Visual Studio experts and will get a knowledgeable and quick answer to this question.