Launcher doesnt even start (PC, Windows 10)

[Norbak]

The first time this happened a message show up that said: Instruction at Referenced Memory Could Not Be Read, now I cant even start the launcher. I've tried reinstalling the game, deleting old saves, updated Visual C++, rescaling it, and nothing works.
Edit: Running Verify intregrity of Game Files it shows up "1 file failed to validate and will be reaquired", y the file gets download but changes nothing

 

[AndrewT]

Edit: Running Verify intregrity of Game Files it shows up "1 file failed to validate and will be reaquired", y the file gets download but changes nothing

If you run it again does it still say that?

Please do a full **clean** re-install:

- move any valued save games elsewhere
- "uninstall" in Steam-CK2
- manually delete both the Steam/SteamApps/common/CK2 AND Documents/Paradox/CK2 folders
- re-install game in Steam, run a Steam Verify when done.
- add ck2game.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 CK2 or Documents CK2 locations, before installing again.

 

[Kehldon]

Bought the game on steam and it didn't start at all.

- add ck2game.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware "Apps Allowed Through" list.

This helped.

 

[SniffableAxe944]

If you run it again does it still say that?

Please do a full **clean** re-install:

- move any valued save games elsewhere
- "uninstall" in Steam-CK2
- manually delete both the Steam/SteamApps/common/CK2 AND Documents/Paradox/CK2 folders
- re-install game in Steam, run a Steam Verify when done.
- add ck2game.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 CK2 or Documents CK2 locations, before installing again.

I was having a similar problem and these instructions got my game up and running again. Thanks for the help