The two files that are responsible for these errors and crash are from the game itself, not windows or any kind of drivers. I've done a month's worth of tweaks, adjustments, driver rollbacks, game reinstalls before throwing it all in the air and just wiping the hard drive and doing a clean reinstall of everything, including recent drivers. The problem persists.

The files themselves, ffxiv_dx11.exe and ffxiv.exe are not monitored by the launcher/patch program. I know this, because I removed both files (before the wipe and clean reinstall of everything) and launched the patcher, which did not replace them. The game won't run without them of course, and knowing how to backup before making changes allowed me to put those two files back. Regardless, after the wipe and reinstall, I got fresh copies, and as others have learned, this does not fix anything. The only common denominator I can see, and it may be wrong, is that the tech people have been reporting as their hardware is relatively new. Systems where components are a few years old are not affected, but once something newer is built, or a new video card is installed, bam, it starts happening.

I can't say it is a driver problem, because if it was, my super-clean install of everything fresh would have solved the issue, which it hasn't.