Does the pre-installed software on the purchased computer include Windows Vista, and is that something you actually need?

Yes, I'm not arguing about the legislation. If it can be reversed, that's great. I'm talking about the fact that, for reasons I don't understand, a user considers the operating system and the computer to be separate things, while a car and its insurance/climate control, etc., are considered a single entity. This is simply a matter of mentality, and, of course, it is unlikely to be corrected. For me, it is perfectly normal and natural to buy a laptop, remove the operating system, and install what I want. Just as my wife can buy a set of five small Christian Dior bottles or something similar and throw two of them away because she doesn't need them, instead of demanding a refund for them.

why can't he say in the service department of the same store - remove Vista for me, I won't buy it, and install Windows XP instead, I'll pay for it.

There's a good anecdote about this.
A man comes into a bakery and asks:
- How much are the raisin buns?
- 2 rubles
- And without raisins?
- Also 2 rubles.
- Then pick out half a kilo of raisins for me.

They don't sell vodka without a bottle, and they don't sell raisins without buns. I treat the operating system as part of the computer. And if it doesn't suit me (like, for example, the onboard video on the motherboard doesn't suit me), I remove it and install what I want. Independently. I don't demand that the onboard video be removed because I have another card.