11 months ago - AndrewT - Direct link
Right click on ck3.exe , properties, compatibility. Tick "disable fullScreen optimisations" untick every other box in that dialog, Apply and exit.
Then in the launcher Game Settings menu, select fullScreen display mode, Vsync off, cap refresh rate at 60.


If those don't help:
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  
11 months ago - AndrewT - Direct link
We see some LiveKernelEvent entries in dxdiag there. They happen when Windows is forcibly downed; have you see those happen? Are they related to this game or something else?

Has this game ever worked on this machine? Or never yet?

I see you have the bare minimum of memory for this game, so please unload every other app you can before starting it.