How is Dell bloatware reinstalling itself on my computer despite removing it?

I'm working with a bunch of Dell wireless keyboards and mice. There's nothing fancy or special about them. They're not even Bluetooth. They're just the ordinary, cheapie stock keyboards and mice that come with new Dell computers. When you plug in the USB wireless receiver, a program called Dell Peripheral Manager automatically downloads and installs itself as part of the driver package. Not only is it useless, it also displays this gigantic data privacy notice on the screen: I already hate useless crapware, but I absolutely loathe crapware that wants to collect personal data... from a KEYBOARD

Question by Wes Sayeed on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.