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Sep 17, 2021
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  • Crusader Kings II
  • Europa Universalis IV
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  • Hearts of Iron IV: Cadet
I bought EU4 in steam and installed it on my PC. I started the game from steam and saw pop up? that Launcher can't connect to Steam. Also this launcher can't see mods from steam and those, that I uploaded manually. It's can identify only mods from Paradox Plaza, but when i turn them on they simply don't work. I tried to uninstall launcher by using "launcher-installer-windows.msi" but it gives me pop up, saying, that Launcher already installed. I've reinstalled game like 10 times, but it's still broke. How can I fix this?
 
Please try this:

- exit the Steam app entirely
- uninstall Paradox Launcher v2 from the Windows "Apps and features" utility, if still present.

Delete the following folders if still present:

- C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/
- C:/users/<UserName>/AppData/Local/Paradox Interactive/
- C:/users/<UserName>/AppData/Roaming/Paradox Interactive/launcher-v2/
To see the AppData folder you'll need to enable View Hidden Items in File Explorer.

- run steam.exe as the Windows Admin user

- run the game from the PLAY button in Steam

IF that doesn't help, in this folder are some .log files:
C:/users/<UserName>/AppData/Local/Paradox Interactive/launcher-v2/
Please attach them here.

Note that you can run eu4.exe directly from File Explorer, which bypasses the launcher.
 
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Please try this:

- exit the Steam app entirely
- uninstall Paradox Launcher v2 from the Windows "Apps and features" utility, if still present.

Delete the following folders if still present:

- C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/
- C:/users/<UserName>/AppData/Local/Paradox Interactive/
- C:/users/<UserName>/AppData/Roaming/Paradox Interactive/launcher-v2/
To see the AppData folder you'll need to enable View Hidden Items in File Explorer.

- run steam.exe as the Windows Admin user

- run the game from the PLAY button in Steam

IF that doesn't help, in this folder are some .log files:
C:/users/<UserName>/AppData/Local/Paradox Interactive/launcher-v2/
Please attach them here.

Note that you can run eu4.exe directly from File Explorer, which bypasses the launcher.
Thanks, it works!