Sure, if I've leased the car from Toyota, maybe the terms of the lease obligate me to bring it in for service, and allow them to replace its carburetor with a fuel injector, fit it out with ABS, or whatever else. Depends on the lease, I suppose. Who owns the car, in this case? Not me, clearly.

I'm not arguing that Microsoft should be selling 1992 Corollas retrofitted with 2016-tech-level features; I'm arguing that it's the owner of the '92 Corolla who gets to decide whether, when, and how it should be upgraded or replaced. Toyota doesn't get to make that choice just because they manufactured the car; the owner of the car gets to make that choice. That's what ownership means.

If I own the computer, I get to decide what software I'm going to install on it, and that means I get to decide whether, when, and how to update it. Neither Microsoft nor any other OS maker gets to make that decision, because they do not own the computer in question.