Like all the users above, I'm experiencing the same problem.
Really sad to see the Dell deprecation. And I mean it, It's not that a guy from Dell is unable to offer a professional answer if not a solution.
But it's about having a computer and being unable to properly update a critical area like the drivers. The Dell computer itself becomes a relic. Of course I won't probably look for a Dell as my next comp if such situations persist, and Dell should be normally aware of the risks. The reputation is hardly gained but easy to lose.
From my point of view, even the technical approach is naive, to say the least. Let's see - we have a My Dell central application already on our laptops. It would be quite natural to make from here a call to a Dell web service and automatically send a snapshot of the system with whatever information Dell needs. Then a result is sent back with the drivers that need update. The same app could then download all the stuff and install it with presumably admin rights.
It's so simple and robust that I'm puzzled when I see this twisted solution they imagined, with this resident Dell System Detect app launched from outside and all the stuff.
Good night Dell, hope you will wake up.