[2022] Unable to play since Royal Court

DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/CK3/pdx_settings.txt .
From your Documents/Paradox Interactive/CK3/logs/ folder, attach here system.log , error.log , exceptions.log  

From that dxdiag I see our launcher, and CK2, are crashing for you also. You may have a larger issue than just this game!

Let's try a few things:

- update that nVidia driver to May 2022 https://www.nvidia.com/Download/index.aspx?lang=en-us
- run the Windows Up[date utility, apply anything it finds, and reboot
- then use this Windows repair tool:

Use the System File Checker tool to repair missing or corrupted system files

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista. support.microsoft.com - and finally, do a full **clean** re-install:

- move any valued save games elsewhere
- "uninstall" in Steam-CK3
- manually delete both the Steam/SteamApps/common/CK3 AND Documents/Paradox Interactive/CK3 folders
- re-install game in Steam, run a Steam Verify when done.
- add CK3.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware "Apps Allowed Through" list.
- start the game with no mods active and test

In particular make sure there are no files or folders left under either the Steam CK3 or Documents CK3 locations, before installing again.

Let us know if they helps at all!  

That error log is completely different now, no mention of problems with the video driver/card. So that's progress.

Please right click on ck3.exe ,properties, compatibility. Tick "disable fullScreen optimisations", untick everything else in there, Apply and exit.

Then run the game and in the launcher Game Settings menu set display mode to fullScreen, Vsync off, refresh rate 60. Is that any better?