The game kept crashing also in borderless windowed mode and windowed mode. In fact, tonight it crashed several times, once with a "xaudio2_9.DLL" error, twice with a simple "ffxiv_dx11.exe" error, and once with a "ffxiv_dx11.exe, KERNEL32.DLL, ntdll.dll" error. On top of this, once the whole computer froze and rebooted itself, with no error at all. I really don't know what to do.