Drop bags…
Bags were once a schoolboy name for trousers (dacks another.)
So [to] Active Windows drop trousers.
I am sure anyone who has ever dealt with MS gets the picture.
There are plenty of realtime and embedded OSs that would be more suited to this application than any version of Windows. Many are open source and at least one is GPL viz eCos (eCosPro is proprietary) and most will run on fairly basic microcontrollers.
What surprises me is that these screens clearly are presented to the application as a raster graphics display when the displayed data is purely textual and could be described by a terminfo entry and driven through a curses library. A FPGA could convert these large displays into a serial 80 column x 128(?) row VT type terminal screens.
A basic rule: if a thing can do something that it never needs to do, ensure that it really can't. Things† that do stuff that they never need to do cause enough grief in this world as it is.
† And people but disabling them is a little more involved than flicking the write protect switch.