[2023] Game won't start after Windows update

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  

notsheldon said: I don't know how to find the .exe file. I installed CK3 through the Xbox app so I don't know where it saves it.

In the Xbox app Library tab for this game, click on the ellipsis ... then Manage, Files. It will probably be in either C:/XboxGames or D:/Xbox Apps


No mention of the game in that dxdiag, but several LiveKernelEvent entries. they happen when Windows or the computer is forcibly downed. Have you seen that, is it related to this game or something else?  

Again we see no mention of this game in that dxdiag, nor any LiveKernelEvents . A couple of crashes in the Xbox app though:

+++ WER9 +++:
Fault bucket 1593488200543814870, type 5
Event Name: MoAppHangXProc
Response: Not available
Cab Id: 0

Problem signature:
P1: Microsoft.XboxGamingOverlay_6.123.10052.0_x64__8wekyb3d8bbwe
P2: praid:App

You could try this windows repair tool

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

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
Failing that, I'm not at all sure what could be causing this to you. do you have access to any other computer to do a test install on? This is to confirm your issue is confined to this machine.

And, look in the Windows Event Viewer app - do you see any ERROR or WARNING entries at the time of these game crashes?


Note I'm on leave until November after today.  

notsheldon said: Any idea how I would find it in Component Services?

None, I'm sorry! I'm not a Windows support tech. I'm not even sure that is significant ... you could try making a new Windows user on that machine, log into it with that, and see if you get the same problem.

notsheldon said: I hope you are able to ping another team member to help with this while you are on leave.

There is no tech support team in the forums I'm afraid, it's just me on a voluntary basis. Strictly speaking it is supposed to be user-to-user support I think.

The channel for formal support is to lodge a ticket at paradox.zendesk.com