FF14 wont launch

[tbdkitsune1]

Whenever I try to launch the game, I get the error "Unable to launch application. Launch using the ffxivboot.exe file.(0)"

What Platform are you using? (Windows/Mac/PS4 etc.): Windows
At what point does the issue occur?: The game attempts to load after clicking play in the launcher and then crashes
How often does the issue occur?: Every time

Could you provide the exact error message received?: Unable to launch application. Launch using the ffxivboot.exe file.(0)
Are you running any additional programs alongside Final Fantasy XIV?: No
Does the issue occur with one character or multiple characters?: not sure, havent gotten to the login screen
When the issue happens, is the PC over heating at all?: PC temp is what it has been for the past 2 years.
Were any update or changes made to the PC around the time of the issue?: No updates. This started occuring after I turned my PC off overnight. However I have done this in the past with no issue.
Does this issue occur if the game is run in full screen mode? Does it happen in borderless or windowed mode?: I use borderless

[Votraftur]

Good morning! Thank you for posting in the Final Fantasy XIV Technical Support Forums.

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.
- Please be sure that Final Fantasy XIV is installed to the C: Drive. (If Steam version, make sure both the game and Steam are installed on same 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.
- Reinstall game.

Thank you once again for visiting the Final Fantasy XIV Technical Support Forums!

[Vautravers]

The launcher doesn't work for me either: the launcher background stays grey with the game logo and nothing else happens.
-
Could made it work using the ffxivboot64.exe as administrator from the folder C:\Program Files (x86)\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\boot

[Galadrhiel]

The companion app don't start here

Say sometime Of manutention

DC : Cristal