End users are basically given a plenty of documentation together with the OS. There are number of laws and regulation governing everything you mentioned. Every information you inquired is actually there within Microsoft knowledge-base.
I really don’t get your frustration.
You are obviously angry due to having experienced a number of issues over the years…
Then you mention malware, xvd, potential threats, problems, etc. It doesn’t have anything to do with anything, it’s as if you’re talking about some conspiracy theories man…
Xvd…it’s hidden…it’s classified as a system module hidden by default with a reason, and there’s a setting in Windows by which you can enable the visibility of such objects - when you do that, you get a warning that you should basically know what you’re doing, correct ? Correct.
Now, what is the issue you are experiencing on your system, being caused by 3 or 50 such containers present ?
You can present your case to the Microsoft support, there is a technical documentation you will fill out, you will explain the issue and the exact way to reproduce it, etc.
But you know what I think ?
I think you just don’t like the aesthetics of 3 or 50 something unknown to you being present there where you decide to…touch…that’s all. 
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A doctor writes the analysis for a patient after the performed ECG examination, then goes on with providing an explation to the patient in layman’s terms.
If that patient subsequently demands to know what does the “QT interval” entry on that report mean, the doctor doesn’t have any obligation to explain it whatsoever…and my colleges working in medical fields of science and I actually talked about this years ago and we all agree that they absolutely do NOT have such an obligation…
…let alone to justify a situation in which a doctor decides to explain it after all, followed by patient not understanding a word anymore and going on a tamper-tantrum claiming he/she is being denied the right to know what’s going on inside his/her body !!?
Like, whaaaat ?? 

OR ! 

A person picks up a prescription, a pharmacist provides the necessary information…a person then goes on to read the medication’s pharmacokinetics on Wikipedia while taking a dump, at one point all of a sudden having his attention drawn to a notice within some passage there about his medication’s slight potential in causing “rise in CYP2D6 cytochrome”.
A person subsequently goes back to the pharmacy and starts givin’ s** to the pharmacist demanding an explanation of “CYP2D6” and why is there a potential of it rising when he/she takes that medication !*
Because he/she just doesn’t like that…sounds bad when something is…rising…somewhere there…rubs the wrong way, know what I mean…?
Also, that “cytochrome”, why have people not been given any explanation about any of those things…that are…rising…
…the evil drug and these insidious hidden system files, xvd containers and the evil pharmacists, doctors, programmers and engineers conspired in a massive malpractice and human rights violation - they should hang !!
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You know, it is called madness.
No, you won’t be given an explanation, get a degree or learn it by yourself, whatever.