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Please try the following:
- Update and reinstall the drivers for your graphics card and sound drivers (if applicable).
- Please try running the game as an administrator.
- Perform a clean boot by opening the task manager and select the 'Start up' Tab. Disable everything.
- Please be sure that Final Fantasy XIV is installed to the C: Drive.
- Please be sure to disable or remove any overlays (Discord, Steam, NVIDIA etc.) as they may interfere with startup.
- Make sure that the Windows OS is fully updated.
- Install game on different drive. (If Steam version, make sure game and Steam are installed on same drive)
- Reinstall game (If steam version, try uninstalling and reinstalling both the game and steam)
- Verify installation files (Steam)

Disable Full Screen Optimizations. To disable this, please find the "ffxiv_dx11.exe" and right click it and select properties. Then under the compatibility tab there will be a check box labeled "Disable Full Screen Optimizations". Check it and click apply.

Please try lowering the resolution

Delete locally saved content ('My Documents' > 'My Games' folder)
When game is running, open the task manager, click the ‘Details Tab” Find the game and right click it. Select ‘Set Priority’ options to “High”

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