Good morning and thank you for posting on the Final Fantasy XIV Technical Support Forums.

We've noticed this error a few times with people updating Windows 10. Do you have any overlays while playing the game or any other programs running in the background when you start the game?

Have you tried reverting your Graphics drivers? It may seem counter productive but the newer versions might be conflicting with the update.

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!