Sigh. Not again...
I realize I'm in the minority, not everyone will find my solution feaseable, but the fact that I'm totally blind & my screen reader reads *everything* in plain text means I should be able to force Windows never to display anything except in very specific fonts. I don't need all the fancy serif's & fiddly bits, just render in plain text so my reader can do it's damned job. Yet I have(?) to leave the font handling service running lest Windows has a hissy fit. Why? Just flush the font folder of everything except the fonts I know work, won't render my system FUBAR, and ignore every font "required" by whatever program I'm running at the time.
You allow it in the browser, why not for the entire OS as a whole? This wouldn't just help me & folks in a similar boat, it would benefit *everyone* whom felt like hardening their machine against such attack vectors.
Of course, that's the reason why MS can't allow it -- we might start getting uppity & demanding an OS that was fit for fekkin' purpose.
*Smashes head on the desk in frustration until I pass out*